Sweet and sour!

Sweet and sour!
Study finds added sugar — equal to 3 cans of soda a day — doubles death rate among female mice, and impairs male reproduction. Even More »

To play, and therefore to mate

To play, and therefore to mate

Are we affecting the character of future generations by the way we choose mates? If choosing attractive mates tends to make the More »

Live birth in ancient reptile

Detail from schematic diagram

Classroom Activity Page: The fossil of a plesiosaur, which was a large, dangerous predator of the seas between 200 and More »

Song of the crocodile

How does momma croc know when to dig up the young? How do the embryos know when to start hatching? The secret’s in the song… More »

Dolly the clone: 10 years later

In 1997, Dolly was BIG NEWS. What did Dolly teach? Why did cloning attract so many oddballs, and what is the status of reproductive More »