It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Lobsters have blue blood.
476