A fish is
a cold-blooded animal that has a backbone, lives in water, and breathes by
means of gills. It normally has two pairs of fins in place of arms and legs,
as well as several other fins. Most fish are covered with scales.
Fish are fascinating in their variety. The sea horse looks
something like a tiny horse standing on its tail. Flounders are as flat as a
dinner plate. The rabbitfish, a small relative of the shark, has a head and
teeth resembling those of a rabbit. Anglerfish carry their own “fishing rod” to
catch other fish. An extended part of the back fin has wormlike pieces of flesh
at the tip, which are the “bait.” Anglers of the deep sea have bait that lights
up to attract victims.
Size differs as much as shape. Some Philippine gobies reach an
adult size of less than half an inch. The whale shark, the largest of all
fishes, reaches 50 feet in length and weighs about 20 tons.
Fish swim mainly by sideways movements of the body and tail. The
fins are used for balancing, steering, and braking. To move quickly from a
resting position some fish shoot a stream of water out of the gills, which
causes them to lunge forward. The fastest swimmers, such as the tuna, can
travel 30 miles per hour.
Most fish continue to grow as long as they live. Fish that live
to an old age can become very large. Carp are among this group. They may live
100 years! []
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TM. Noumi
13th April 2016
Banda Aceh, Indonesia
Citizens of the Water
Reviewed by Mac_Noumi
on
06.33.00
Rating:
Reviewed by Mac_Noumi
on
06.33.00
Rating:
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