like people, need oxygen to live. A fish out of water is a fish out of its element.
A fish comes fully equipped with a pair of gills, which it uses to breathe under
water. The gills extract life-sustaining oxygen from the hydrogen in the water
molecules, in order to regulate the amount of oxygen intake. This maintains the
necessary balance of the two components of water for the fish to survive.
a fish is taken out of water, and exposed only to air, not to oxygen and hydrogen
containing water, its gills are unable to control the oxygen intake, the delicate
balance cannot be maintained, and the gills inhale a lethal overdose of oxygen.
The fish essentially experiences death by "drowning."
species of fish live in a single tributary of the Amazon River than in all the
rivers in North America combined.
most carnivorous of all bears is the polar bear. Its diet consists almost entirely
of seals and fish.
mudskipper is a fish that can actually walk on land.
pair of fins at the back of a fish's body are called pelvic fins.
sailfish can travel up to 68 miles per hour
fish eggs are almost yolkless, since they are laid in water where food for the
unborn fish is readily available.
fish, such as flounder and cod, have thicker bones than freshwater fish, such
as catfish and trout.
and rainbow trout are the same species, but rainbow are freshwater fish only,
and steelhead are anadromous, meaning they go out to sea.
are 200 species of catfish in the world.
are more species of fish than mammals, reptiles and birds combined.
one-third of the world's fish harvest is used to feed pets and livestock.
biggest fish in the world are: the whale shark at 50,000 pounds, the basking shark
at 32,000 pounds, the great white shark at 7,000 pounds, the Greenland shark at
2,250 pounds, and the tiger shark at 2,070 pounds.