Spoilers for Biosphere past this point. The sci-fi dramedy Biosphere refuses to give viewers an opportunity to back out before its unpredictable twist takes over — and that’s intentional. What starts ...

A bit of genetic archaeology is giving clues to one of the greatest gender-bending mysteries in the world of fish: How did a family of fish come to embrace male pregnancy? A new gene discovered in the ...

At almost every aquarium I have ever visited with a seahorse exhibit, the plaque in front of the tank says the same thing: in seahorses and their relatives, males, not females, carry the babies. It is ...