Every ecosystem is shaped by billions of invisible battles: organisms competing for light, nutrients, space, or mates. These competitive interactions determine which species survive, how they evolve, ...

City environments subject animals to noise, light, crowding, and fragmented habitats that subtly but powerfully reshape how they communicate.

Here's a chance to cheer for a cheetah, root for a roach, or perhaps shout for a shark. Cable's Discovery Channel is launching "Animal Games" to determine which animal athletes are the fastest, ...