Condoms were originally made of animal intestines or linen.
347
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
A domestic cat can sprint at about 31 miles per hour.
274
Cats and dogs can hear ultrasound.
350
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11