Macaques Reacted Slowest Where Either Hand Was Equally Likely to Be Chosen
In a reaching task, two rhesus macaques were slowest to respond near the point where either hand was…
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Research, conservation and new discoveries
A continuing selection of new studies, conservation projects and important developments connected to species in the archive.
Carrion Crows Decide Which Way Dots Move in About 235 Milliseconds
In a visual task, two carrion crows chose whether moving dots were travelling mostly left or right in…
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Kinship, drought and matriarchs shape elephant family ties
More than 50 years of records from Amboseli, Kenya, show how elephant family cohesion shifts as families grow,…
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Size and Weight Help Wild Carrion Crows Choose Walnuts
In field tests in Japan, wild Carrion Crows favored larger walnuts. When similar-sized nuts hid different contents, the…
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Coyotes and Raccoons Solved an Urban Food Puzzle in Different Ways
In California’s East Bay, raccoons and coyotes had the highest observed success on a baited food puzzle, but…
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Ducks sharing South Korean wintering grounds migrated in different ways
GPS tracking of six dabbling-duck species found contrasting spring journeys: Northern Pintails and Baikal Teals travelled farthest, while…
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Great Egrets Returned to Familiar Colonies, Used Wetlands Most and Avoided Cities
GPS tracking of seven Great Egrets in Eastern Europe found that four of six birds followed across multiple…
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Crows find it harder to switch to vocalizing than to pecking
In a task where carrion crows learned to peck or vocalize in response to visual cues, switching to…
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Kentish Plovers shift how they forage while keeping a stable diet
Video recordings from a tropical beach on India’s west coast show that successful surface foraging declined from 2020…
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Where offshore wind plans could overlap with Little Terns
In Japan, a screening framework maps likely Little Tern feeding waters and identifies where they may overlap with…
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Wild boar choose different tree-rubbing sites as seasons change
Monthly surveys along ten transects in a Mediterranean agroforestry system found that wild boar used tree-rubbing sites differently…
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Reintroduced spotted hyenas favored dense bush and prey-rich scrubland
Tracking five hyenas in a lion-free section of Tswalu Kalahari Reserve, South Africa, linked their habitat use to…
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Spotted hyenas appeared near livestock enclosures more often in rainy months and on darker nights
Camera traps at 12 livestock enclosures in central Kenya recorded spotted hyenas more often during wetter months and…
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Camera traps reveal three separated leopard groups in China’s Taihang Mountains
Researchers identified 41 leopards in Henan from camera-trap images collected between 2017 and 2024. Records showed three spatially…
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More Human Activity Linked to Tigers Becoming More Nocturnal and Leopards Shifting Their Core Areas
Camera traps at more than 300 sites in northeast China recorded tigers becoming more nocturnal at sites with…
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Three Ways of Analysing Elephant Calls Gave Different Results
Recordings from a semi-free herd in South Africa show how the method used to classify call timing can…
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Female Rhesus Macaques That Watched Unfamiliar Female Faces Longer Were More Likely to Have Offspring the Following Year
At a semi-free-ranging population in Puerto Rico, females that spent longer looking at an unfamiliar female’s neutral face…
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Elephant Rank Was Linked to Stress Levels After Helicopter Disturbance
In a small, fenced elephant population, helicopter use was associated with higher stress-hormone markers. Lower-ranking elephants had higher…
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City and Forest Great Tits Respond Differently to Artificial Light at Night
In a common-garden experiment, artificial light initially advanced daily activity onset in great tits from both city and…
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African Bush Elephants Distinguished Artificial Food-Quantity Patterns at Close Range
In experiments in South Africa, four semi-tame elephants chose between visual patterns representing canopy size and leaf density.…
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