Animals, The More You Know

Frogs Have A 360 Degree Visual Range

The eyes of a frog are made and positioned in such a way that at any given moment they can see everything around them, including what is behind them. As if this did not make them difficult enough to sneak up on, frogs also sleep with both of their eyes open.

Dolphins sleep with one half of the brain at a time, and with one eye closed.
Great white sharks can detect a drop of blood in 25 gallons (100 litres) of water and can even sense tiny amounts of blood from 3 miles (5 km) away.
The wood frog can hold its pee for up to eight months.
Pear and apple seeds contain arsenic, which may be deadly to dogs.