A tiny jellyfish, Turritopsis dohrnii, possesses a remarkable ability to reverse its life cycle, effectively defying ...

Quite an advantage in today’s world.

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to ...

These “walking sharks” can lay eggs without spending extra energy, rewriting what scientists thought they knew about reproduction.

Butterflies (Papilionoidea) come in a remarkable variety of colors and patterns, from the orange majesty of the monarch to the lustrous red and blue of the peacock butterfly, but all butterflies ...

The Kratt Brothers are always ready for an adventure — especially when they visit the eastern United States to learn about the American bullfrog. Let the learning leap from the screen and into your ...