COLUMBIA, Mo. — Human babies born via cesarean section miss out on an opportunity to pick up beneficial microbes that other babies get when they take a trip through mom’s vagina. And even though the ...

Unlike humans and birds, male snakes and lizards have paired genitals. Called hemipenes, they’re almost like having two penises, but only one works at a time during sex. By studying mammal and reptile ...

When it comes to genitalia, nature enjoys variety. Snakes and lizards have two. Birds and people have one. And while the former group's paired structures are located somewhat at the level of the limbs ...

Side-blotched lizard hatchling in the Baldwin Hills. Stevie Kennedy-Gold/NHMLA. When I was a roving California correspondent, one of the stories on my list that I rue never getting to was the autumn ...

Must-have in any tropical rainforest first aid kit! Apply topically over entrance to bot fly pupae until maggot dies, then extract. Coloured polish helps track infestation over course of field season.