The reason it's smarter to store your eggs with the fat end up is that the egg itself does not completely fill the interior of the shell.
Stink bugs have gotten a bad rap, but the spined soldier bug variety are great for taking care of garden pests.
The color of eggshells helps mothers identify their own kind and/or camouflage them with their environment.
Temperature determines the sex of painted turtle hatchlings, and climate change is tipping the balance to an all-female future.
Yucca moths and flowers depend on each other for reproduction.
Magpie personality traits differ according to their parents' hormone levels.
Leatherback turtles, immune to cold waters, lay eggs whose sex is determined by water temperature.
This feat of collective mimicry is a testament to just how clever evolution can be.
The bizarre story of how dung beetles bring the next generation into the world.
Single fatherhood is hard for the male water bug. Afraid he'll eat his offspring, dad simply goes without.