Giraffe conservation & populations

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• Serengeti Giraffe Declines Point to the Loss of Older Animals

  Photographic histories show how similar birth rates can accompany diverging giraffe populations: fewer older animals remain at declining Serengeti sites.

  8 min read

• The Ancient Divide in Masai Giraffe DNA

  DNA reveals an ancient divide across Tanzania’s Gregory Rift and later connections through males, showing why Masai giraffes on both sides need protection.

  9 min read

• A Giraffe’s Swallow May Help Pump Blood Back to Its Heart

  Pressure recordings reveal how giraffe circulation changes during a drink—and why swallowing may help return blood to the heart.

  8 min read

• What a Giraffe’s Hips Can Reveal About Its Condition

  Researchers turned giraffe photographs into a practical condition score—and found an unexpected difference between zoo and wild animals.

  10 min read

• A Second Breeding Population Begins for Niger’s West African Giraffes

  After recovery in one part of Niger, 12 West African giraffes were moved to Gadabedji. Five recorded births mark the beginning of a second breeding population.

  8 min read

• Giraffe Skin Disease and Snare Wounds: What Walking Reveals

  A giraffe's skin lesions and its ability to walk tell different stories. Explore a wild-giraffe gait study, its limits and the research it opens up.

  11 min read

• The Company Giraffes Keep Is Linked to Their Survival

  A five-year study of female giraffes linked survival to everyday company, suggesting benefits from social life even as groups split and reform.

  9 min read

• More Rain, Lower Giraffe Survival? Inside an Eight-Year Study

  An eight-year giraffe study found surprising links between rain and survival. Explore its seasonal evidence, careful methods and questions for future research.

  10 min read

• Living With Giraffes in Eastern Kenya: Welcome and Costs

  A survey near a giraffe sanctuary in eastern Kenya finds willingness to share land alongside repeated damage, revealing what coexistence must address.

  9 min read

• What a Giraffe Does While Eating Matters Too

  Observations of 66 giraffes across 18 US zoos linked browsing and extracting food with fewer repetitive mouth behaviours, revealing why feeding time matters.

  8 min read

• Some Giraffes Migrate While Their Neighbours Stay

  Giraffes in Uganda used both resident and seasonal movement strategies. Photographs revealed that males were more likely to move between habitats.

  6 min read

• Garamba’s Scattered Giraffes Need More Than a Count

  Photographs and tracking revealed scattered groups among Garamba’s remaining giraffes, showing why recovery depends on understanding movement and contact.

  6 min read

• How Migrating Herds May Help Giraffe Calves Survive

  A Tanzanian study linked giraffe calf survival to the balance of lions and migrating grazers, revealing a connection between animals that eat different foods.

  7 min read

• A giraffe population can survive on borrowed animals

  Photographic records from Tanzania reveal how movement connects growing and declining giraffe populations, and why counting animals can miss the difference.

  7 min read

• Where scientists look changes the giraffe survival story

  A Tanzanian study found that adding less-protected landscapes changed which life stage explained differences in giraffe population growth.

  7 min read

• Testing possible futures for Tanzania's giraffes

  A population model compared rainfall, development and protection scenarios, showing how small survival changes can reshape giraffe numbers over decades.

  7 min read

• The giraffe habitat map that reaches beyond parks

  An aerial survey and satellite model identified potential giraffe habitat between Tsavo's parks, while leaving actual movement routes to be tested.

  7 min read

• When winter changed the menu for Sanbona's giraffes

  Introduced giraffes in the Little Karoo shifted their recorded diet in winter, highlighting why year-round browse matters in habitat assessments.

  7 min read

• Why giraffes need not wait for the best birth season

  Dry-season calves survived better in a Tanzanian study, but a reproductive calculation showed why waiting for that season could reduce a mother's output.

  7 min read

• Uganda's giraffe recovery had a geographic weakness

  Historical records and individual photographs showed why Uganda's recovering giraffe numbers still left most animals concentrated in one population.

  7 min read

• Uganda's new giraffe populations took years to begin

  Long-term monitoring in Uganda found that introduced giraffes began breeding after a roughly three-year wait, revealing how recovery should be judged.

  7 min read

• Niger's giraffe recovery survived a harder count

  A review of fifteen years of giraffe photographs removed duplicate identities and corrected abundance estimates, while still finding strong recovery.

  7 min read

• The giraffe population with fewer young animals

  Two nearby Kenyan populations had similar totals but very different age structures, showing why a head count can miss a shortage of young giraffes.

  7 min read

• Giraffes With Lion Experience Stay Alert to Roars Longer

  Giraffes at two South African reserves noticed lion recordings quickly, but animals living with lions sustained their vigilance for much longer.

  5 min read

• What Zoo Closure Revealed About Two Giraffes

  A study followed two giraffes through Oregon Zoo’s 2020 closure and reopening, separating visitor transitions from seasonal and social changes.

  5 min read

• Can a Giraffe’s History Leave a Lasting Stress Signal?

  A small study combined blood measures and body condition to investigate whether accumulated life events leave a measurable physiological signal in giraffes.

  5 min read

• Giraffes Walked Farther When Researchers Followed Them

  GPS records, observations and dung samples revealed how seven giraffes responded to researchers—and why appearing accustomed to people can mislead.

  6 min read

• Young Giraffes Can Change Communities Without Moving Far

  Seven years of photographs showed how young giraffes can leave their original social community while remaining in familiar country in northern Tanzania.

  6 min read

• What Four Giraffes Revealed About Visitor Encounters

  A zoo pilot compared feeding encounters with matched control periods, finding no clear adverse behavioural change while exposing gaps in welfare assessment.

  6 min read

• The Mobile DNA Still Copying Itself in Giraffe Genomes

  A comparison of 48 giraffe genomes reveals which mobile DNA families still spread, and how their insertions preserve evolutionary history.

  5 min read

• Which freezing mixtures keep giraffe sperm moving?

  A seven-giraffe comparison found that freezing mixtures changed sperm movement after thawing, while showing why movement alone cannot establish fertility.

  5 min read

• The okapi genome and the rearranged giraffe chromosomes

  A more continuous okapi genome revealed striking chromosome differences from giraffes, showing why close relatives need not share the same DNA packaging.

  5 min read

• Why Tarangire’s Aerial Giraffe Estimates Needed Correction

  A Tarangire comparison found large, uneven gaps between aerial and ground giraffe estimates, showing why detection must be checked before numbers are compared.

  8 min read

• One Set of Giraffe Photographs, Very Different Headcounts

  At Ongava in Namibia, the same camera survey produced giraffe estimates from 87 to 215. Drinking visits helped explain why the counting model mattered.

  9 min read

• Arusha’s Giraffe Census Revealed a Forty-Year Loss

  Photographic identification found a major decline in Arusha’s giraffes, while shared maternal DNA preserved evidence of an older connected landscape.

  8 min read

• A Photo Census Put Cameroon’s Giraffes Back in View

  Photographs identified two small Kordofan giraffe populations in Cameroon, providing a monitoring baseline without proving growth or complete isolation.

  8 min read

• Why Losing Two Giraffes Could Endanger a Small Population

  A Bénoué population model found severe consequences from occasional adult losses, while showing which uncertain demographic measurements matter most.

  9 min read

• What Injured Giraffes Reveal About Hidden Snare Risk

  Photographic surveys in Murchison Falls mapped surviving giraffes with snare injuries, revealing uneven exposure without measuring the total death toll.

  8 min read

• What Satellite Maps Can Say About Giraffe Habitat

  A model combined 31 tracked giraffes with satellite imagery to find potential habitat, while independent checks revealed where its predictions weakened.

  8 min read

• After Release, Did the Giraffes Make a Home?

  Tracking six giraffes after translocation distinguished repeated use of a home area from prolonged exploration, offering an early but limited success measure.

  9 min read

• Why Early Giraffe Population Growth Can Mislead

  Giraffe translocation simulations showed that early growth can conceal later demographic and genetic losses, changing what counts as a successful release.

  9 min read

• Thirteen Giraffes in a Landscape of Scattered Food

  A NamibRand study followed thirteen giraffes through sparse habitat, revealing concentrated food use and why a small census cannot establish resilience.

  8 min read

• Why Community Land Matters to Giraffe Nurseries

  Photographic surveys on Kenya’s Siria Plateau found many young giraffes outside a major reserve, while leaving the causes of their success unresolved.

  9 min read

• Male Giraffes Spar With a Preferred Side

  A field study followed male giraffe sparring, finding size-matched partners and strong individual side preferences without proving future fighting success.

  5 min read

• The Feeding Encounters That Revealed Giraffe Rank

  Repeated yielding at feeding time revealed ordered relationships in captive giraffes, with age and stable female ranks complicating an egalitarian image.

  5 min read

• More Giraffes Changed How Visitors Saw the Herd

  Visitors rated a giraffe social group more positively after two animals joined it, but the survey could not establish better welfare for the giraffes.

  5 min read

• Two Giraffes Rested Differently on Outdoor Nights

  Night cameras at Kyoto City Zoo showed opposite changes in two female giraffes’ lying bouts, revealing why outdoor housing needs individual assessment.

  5 min read

• A Giraffe Feeding Visit Also Reaches the Zebra

  Keeper observations followed giraffes and their zebra neighbours through a public feeding season, revealing why welfare checks must cover the whole exhibit.

  6 min read

• Two Giraffes Faced the Same Building Work Differently

  Following two giraffes through construction, illness and a companion’s death showed why behaviour and hormone measures must be interpreted together.

  5 min read

• What an Average Giraffe Behaviour Budget Hides

  A study across 18 zoos found repetitive behaviours in every observed giraffe, yet their frequency varied enough to change what an average could mean.

  5 min read

• Teaching Motion Sensors to Recognise a Giraffe’s Day

  Head-mounted sensors distinguished several giraffe behaviours, but testing a new animal exposed the limits of learning from familiar movements.

  5 min read

• Beyond a Giraffe’s First Hour With Fresh Branches

  Four kinds of cut branches produced different browsing patterns in five giraffes, and observations after feeding changed how the results were understood.

  5 min read

• How a Giraffe Can Have Mixed Ancestry and Be Inbred

  Whole-genome comparisons of 13 zoo giraffes show why mixed ancestry and a high average level of genetic variation can coexist with recent inbreeding.

  6 min read

• Why a Giraffe Population Crash Can Hide in Its DNA

  Northern giraffe genomes revealed long population declines and differing inbreeding histories, but did not clearly recover one recent population crash.

  6 min read

• How Air and Blood Meet Inside a Giraffe Lung

  A rare measurement in one anaesthetised giraffe found little blood bypassing gas exchange, despite uneven matching of air and blood within its lungs.

  6 min read

• The Complex Sugars Found in a Giraffe’s Milk

  Chemical analysis of giraffe milk revealed two complex sugars and showed how small changes in molecular structure distinguish milk from different mammals.

  6 min read

• An Anthrax Outbreak Took a Quarter of Mwea’s Giraffes

  A 2011 outbreak killed eleven giraffes in a small Kenyan reserve. A veterinary report follows the response and explains the importance of monitoring.

  5 min read

• A Shrub Marked for Clearing Is a Giraffe Staple

  In Tanzania, giraffes selected a shrub targeted by rangeland managers, revealing why clearing bush can remove an important food source.

  4 min read

• When Giraffe Water Routes Meet Farmers’ Fields

  A River Tana study combined local accounts, habitat mapping and farm observations to examine giraffe conflict and a food-and-water trial.

  5 min read

• Nakuru’s Giraffes Changed Meals More Than Mealtimes

  Observations at Lake Nakuru found a seasonal shift in one important giraffe food, while the overall share of time spent feeding changed little.

  5 min read

• Flower-Eating Giraffes Left Knobthorns With Fewer Pods

  A Kruger study followed knobthorn flowers into fruiting season to ask whether feeding giraffes help pollination or reduce tree reproduction.

  4 min read

• Why Camera Volunteers Missed Animals in Plain Sight

  A comparison of wildlife camera projects found that overlooking animals, rather than naming the wrong species, explained most errors in a Kenyan survey.

  5 min read

• Teaching a Photo Catalogue to Recognise Giraffes Again

  A study of 25,363 giraffe photographs tested faster identity matching, while keeping returning animals and newly photographed individuals distinct.

  5 min read

• Private Answers Revealed Falling Giraffe Meat Use

  Surveys in northern Kenya used private dice rolls and list counts to examine changes in giraffe meat consumption between 2016–2017 and 2019.

  5 min read

• Giraffe Trade Has Different Routes and Local Stakes

  A specialist survey and literature review traced regional differences in giraffe use and trade, showing why export records cannot explain every threat.

  5 min read

• Giraffes and camels shared shrubs but fed at different heights

  A Kenya field study found giraffes and female camels feeding at different heights, while herding routes complicated the question of competition.

  5 min read

• Giraffes shared livestock sites but visits were spaced apart

  Six years of Kenya camera records show giraffes and livestock using many of the same places, with slower giraffe detections after livestock visits.

  5 min read

• Thorns did not slow giraffe bites in two Tanzanian parks

  Observations in Serengeti and Mikumi found no clear link between spines and giraffe bite rate, while leaf-size patterns depended on the park.

  5 min read

• A relocated giraffe took a winding 894-kilometre route home

  GPS records followed one Angolan giraffe back to her capture property after 155 days, revealing a long, indirect journey and limits to homing claims.

  5 min read

• Several Fossil Names May Describe Europe’s Last Giraffid

  New Greek fossils helped researchers compare skulls, teeth and limbs across Eurasia, supporting one species behind several historical giraffid names.

  6 min read

• Putting the Giraffe Genome Back Into Chromosomes

  A chromosome-scale giraffe genome combined DNA sequencing with physical maps, showing why reading genetic letters is only part of the problem.

  5 min read

• A Giraffe’s High-Pressure Heart Has Less Room Inside

  Measurements of beating giraffe hearts revealed how a thick wall and small pumping chamber control muscle stress while limiting blood per beat.

  5 min read

• A Giraffe Calf’s Rotavirus Resembled Cattle Strains

  Genetic analysis of rotavirus from a sick giraffe calf linked two viral surface proteins to cattle strains, without identifying the source of infection.

  5 min read

• A Giraffe Calf’s Social Circle Resembled Its Mother’s

  In a Senegalese reserve, giraffe mothers with stronger associations also had calves that spent more time together, revealing a shared social pattern.

  5 min read

• Experienced Giraffe Mothers Gave Calves More Nursing Time

  A study of 22 giraffe mothers separated age from previous births to investigate why some females allow calves more nursing time.

  5 min read

• Male Giraffe Calves Stayed at the Udder Longer

  Male calves had longer suckling bouts in a four-zoo study, including bouts ended by the nursing female. Time at the udder did not measure milk intake.

  5 min read

• Managing Giraffe Aggression Meant Watching Both Bulls

  A Knowsley Safari case study followed two male giraffes through an intervention, reduced sparring and a later reversal in their relationship.

  5 min read

• Giving Giraffe Behaviour a Shared Vocabulary

  A behavioural inventory combined field observations with earlier research to make descriptions of giraffe actions more consistent and comparable.

  5 min read

• How Researchers Checked a Dung Test for Giraffe Stress

  A comparison of six laboratory assays showed why measuring hormone traces in giraffe dung needs validation before it can inform welfare decisions.

  5 min read

• Giraffe Mothers Remained Near Their Dead Calves for Days

  Two East African field records describe mothers staying near dead calves and other giraffes investigating, raising questions about recognition and attachment.

  5 min read

• Male Giraffes Connected More of the Social Network

  Five years of giraffe sightings in Tanzania distinguished the number and reach of social connections from the strength of close relationships.

  5 min read

• Ancient Giraffe Footprints on South Africa’s Cape Coast

  Twelve fossil prints near Still Bay point to giraffes on an ancient Cape landscape. Their shapes, estimated age and coastal setting tell different stories.

  5 min read

• A Giraffe’s Pulse Hidden in an Ordinary Video

  Researchers amplified tiny colour changes in a giraffe’s leg to recover a pulse signal from online footage, opening a window on contact-free physiology.

  5 min read

• What Lion Scars Reveal About Giraffe Skin Disease

  A photographic study in Tanzania tested whether severe skin lesions go with lion-attack marks, revealing how survivors can complicate a predation study.

  4 min read

• Why Zakouma's Giraffes Range Beyond the Park in Wet Months

  GPS tracking in Chad found that female Kordofan giraffes used larger wet-season ranges, showing why protection must account for changing access to habitat.

  4 min read

• What Makes a Giraffe Hesitate Around Something New?

  A zoo experiment with giraffes and nine other hoofed species explores how unfamiliar objects, social position and group context affect approaching food.

  6 min read

• Two DNA Histories Changed the Map of Southern Giraffes

  Whole genomes revealed why a maternal DNA marker could place southern giraffe populations differently, uncovering mixed ancestry and past connections.

  6 min read