- Fact 4 - All fish species are
vertebrates (have a backbone)
- Fact 5 - Most breathe through gills
and have fins and scales
- Fact 6 - Many have a variety of
protrusions or spines on the head
- Fact 7 - Fish secrete a type of
mucus, or slime, from their skin which provides protection
against parasites and infections and helps them to move through
the water faster
- Fact 8 - A fin is an external
appendage or "limb" of a fish
- Fact 9 - Fins are used for
directing, stabilizing, or propelling the fish in water
- Fact 10 - Numbers of fins vary
between species, but there are usually seven. Each of the fins
are designed to perform a specific function
- The dorsal fin is located on the
backs of fishes and lend stability in swimming
- The ventral fin is located on the
pelvic area of fishes and lend stability in swimming
- The Caudal fin is located on the
tail area and designed to propel fish through the water
- The Anal fin is located on the anus
area of fishes and lend stability in swimming
- Pectoral fins are located on the
breast area of fishes and are for locomotion and side to side
movement
- The Adipose fin is an extra fleshy
fin on the back behind the dorsal as in salmons, smelts, and
lanterns to lend stability in swimming
- The cephalic fin are the "horns" of
manta rays and their close relatives
- Fact 11 - Gills enable most fish
species to breathe
- Fact 12 - Gills consist of thin
sheets of tissue containing blood vessels. As water passes over
the gills oxygen is absorbed into the blood stream Carbon
dioxide passes out into the water.
- Fact 13 - The gills are protected
by a large bony plate called an operculum
- Fact 14 - Some fish have lungs and
breathe air
- Fact 15 - Types include Tropical,
Saltwater, Aquarium , Marine , Pet and Pond fish
- Fact 16 - Species include Clown,
Koi, Beta , Goldfish, Star, Angel, Puffer, Discus,
Piranha, Rainbow, and Parrot
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