PETBOOK magazine on MSN

Why Many Hoofed Animals Are Ruminants–and Horses Are Not

Eating grass–sounds simple, right? But behind this everyday process lies a highly specialized system in many hoofed animals ...
Gizmodo

Here Is an Important Scientific Study About How Animals Relax

Scientists have determined that the way an animal rests—reclining on its back, sprawling on its belly, standing up, or sitting, is determined by primarily by its size. But more importantly, the study ...
Smithsonian Magazine

A Swan Swallowed This Fish Egg, Pooped It Out—and Then 49 Days Later, It Hatched

The tough little egg made it all the way through the digestive system of a coscoroba swan like this one. TonyBaggett / iStock Killifish eggs are known for their resilience: They’ve been found thriving ...
Yale Environment 360

Double duty: Gut’s immune system helps regulate food processing, too

The small intestine is ground zero for survival of animals. It is responsible for absorbing the nutrients crucial to life, and it wards off toxic chemicals and life-threatening bacteria. In a new ...