It's 2014, and as usual, my email inbox is loaded with interesting new stories about various aspects of animal behavior. Two studies recently caught my eye, and show how much we still have to learn ...

There’s an origin story about butts: Once upon a time, all animals were essentially blobs with mouths, and they had to eat and defecate through that single hole. But over the millennia, some blobs ...

Pooping in the news: Why other animals don't need or use toilet paper Pooping positions have recently been in the news, especially a recent study about how dogs line themselves up with the Earth's ...

With so many nice things to eat in the world, why would any animal look at the menu and order a number two? For Saturday's Weird Animal Question of the Week, we're answering Manuela Castro, who asked ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

Marc Bekoff, emeritus professor at the University of Colorado, Boulder, is one of the world's pioneering cognitive ethologists, a Guggenheim Fellow, and co-founder with Jane Goodall of Ethologists for ...

DEAR JOAN: I am trying to figure out what is pooping on my back lawn. It has been going on for the past two years. I don’t have any pets and our yard is completely fenced in. I do have a fish pond, ...

DEAR JOAN: I am trying to figure out what is pooping on my back lawn. It has been going on for the past two years. I don’t have any pets and our yard is completely fenced in. I do have a fish pond, ...