Running speed and strength depends on the type of muscular tissue one is born with.
The color of eggshells helps mothers identify their own kind and/or camouflage them with their environment.
You probably think of them as little more than pests, but roaches actually have distinct personality types.
With their echolocating abilities and fast sensory-motor reactions, bats are amazingly quick on the uptake.
Understanding language's meaning requires coordination between the left and right parts of the brain.
The dusky dottyback is dressed to kill: It shape-shifts to look like its prey and goes in for the attack.
Human activity is causing grave damage to the ocean's coral reefs.
Humans and hummingbirds will switch to a second brand only when presented with a third.
Plasma, created in a lab by heating gas, constitutes the fourth state of matter.
The more exposed to various odors a society is, the more vocabulary it dedicates to naming and describing smells.