Using a circadian clock centered around the rising and falling of tides, Fiddler Crabs know when it is safe to hunt for prey.
A little thing called oxytocin found in Prairie Voles and humans creates life-long bonds during the mating process.
Spectacled Parrotlets prove themselves superior problem-solvers compared to their relatives when it comes to cause and effect. It could be due to the complexity of their social lives.
With a large population of shorebirds and a limited supply of food, evolution has granted these creatures the tools to specialize in individual foraging techniques, including bill shape, hunting tactics and body size.