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Animal Friends

The animals we see every day are full of surprises. Here we explore animal behavior and biology — from cats and dogs to whales and beetles.

Animals, plants, and even some bacteria use hypodermic needles

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Needles are everywhere in nature, evolving independently many times in a variety of organisms

Hayden Waller, Cornell University

Songbirds might hold the key to managing our cholesterol levels

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Sahana Sitaraman, National Centre for Biological Sciences, India

Serendipitous data reveals a previously unknown ecosystem under Arctic ice

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Sarah Heidmann, University of the Virgin Islands

Chimpanzees' brains reflect their early childhood experiences

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Lauren Granata, Northeastern University

For the first time ever, researchers have "housebroken" cows

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Fernanda Ruiz Fadel, Advanced Identification Methods GmbH

Wild Goffin's cockatoos can use tools, too

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Fernanda Ruiz Fadel, Advanced Identification Methods GmbH

Researchers observe a boar releasing two caged younglings in a impassioned rescue

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Simon Spichak, Neuroscience

Roe deer pause development of their embryos for months, and researchers just learned how

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Charlotte Douglas, Institut Curie Paris

Female jumping spiders favor the most aggressive males

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Hayden Waller, Cornell University

Tiny radio tags reveal the lives of Neotropical stingless bees

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These bees are small, but the tags are smaller

Lila Westreich, University of Washington

What engineers can learn about infrastructure from predatory army ants

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Celia Ford, University of California, Berkeley

Top-ranking baboons age the fastest. Is it worth it?

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Anna Rogers, UC Berkeley

What does a spider eat? Look at the DNA in their guts

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Fernanda Ruiz Fadel, Advanced Identification Methods GmbH

Illegal shark fishing study shows widespread catch of threatened Galapagos species

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Enzo M. R. Reyes, Massey University

Animals and their DNA move through the environment in different ways

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Joanne Littlefair, Queen Mary University of London

To make fishing sustainable, we need to track fish as they move around the world

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Sarah Heidmann, University of the Virgin Islands

Choosing which anemone species to call home has dramatic consequences for young clownfish

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Hayden Waller, Cornell University

Ancient DNA pulled from dirt yields evidence of a Paleolithic human, wolf, and bison in Georgia

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Naushin Raheema

Declining populations mean young birds have no one to learn their songs from

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Young male Regent honeyeaters are picking up sounds from other bird species

Enzo M. R. Reyes, Massey University

Hawksbill sea turtles are adventurous during the day but keep to the reef at night

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Robin Garcia, Marine Science

Recognizing monarch butterflies under the Endangered Species Act may do more harm than good

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Lila Westreich, University of Washington

Comment 3 peer comments

Six lifestyle tips from parasitic bees

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Ashley Juavinett, UC San Diego

Bats are born knowing the speed of sound

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Kristina Muise, University of Winnipeg

Comment 1 peer comment

Inside the complicated, messy world of pet cloning

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Cosmo Bjorkenheim

Before Shark Week and Jaws, World War II spawned America's shark obsession

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Janet M. Davis, University of Texas at Austin

Your dog's chewing behavior might be a sign of their intelligence

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Nechama F. Sammet Moring, Science Journalism

Artificial light at night is dangerous for coral reef fish

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Alyssa Paparella, Baylor College of Medicine

Electric catfish are immune to their own shocks

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Exactly how these fish withstand electrical zaps remains unclear

Andrew Saintsing, University of California, Berkeley

Paper wasps can recognize each other's faces, some broods more than others

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Hayden Waller, Cornell University

A smelly paste tricks invasive predators into leaving native birds alone

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Enzo M. R. Reyes, Massey University

Southern England has a small but thriving population of Australian red-necked wallabies

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Maria Gatta, University of the Witwatersrand, Johannesburg

Domestic cats fall for the same visual illusions as we do

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Sam Zlotnik, University of Florida

Scientists celebrate Inverte-Butt-Fest, a photographic homage to spineless backsides

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Max G. Levy, Science and Health Journalism

Ocean mammals keep cancer at bay with tumor suppressing genes

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Hazel Walker, University of Cambridge

Fruit fly "cancer avatars" recreate mutations in tumors for personalized treatment

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Joyce Yu, The Francis Crick Institute

Comment 2 peer comments

Why don't hibernating bears get osteoporosis?

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Kristina Muise, University of Winnipeg

Fruit flies have more sex when predatory wasps come around

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This weird predator-prey interaction appears to be reliant on one gene in particular

Rujuta Vaidya, Louisiana State University

Cicadas' shrieks have annoyed — and delighted — humans for thousands of years

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Eliza Middleton, University of Sydney

Linda Evans, Macquarie University

Scientists capture the inner workings of the click beetle's explosive jumps

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Adam Fortais, McMaster University

Comment 2 peer comments

Weeding out non-native strawberry guava keeps a flying fox, and the crops it feeds on, out of harm's way

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Eva Colberg, University of Missouri - St. Louis

Comment 4 peer comments

Paw hygiene is no reason to ban assistance dogs from hospitals – they’re cleaner than people’s shoes

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Joris Wijnker, Utrecht University

Paul Overgaauw, Utrecht University

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