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External Anatomy | Mouth &
Fins |
Some basic information
with some very basic animation about how fish are built.
The first diagram is of the main fins present on
most fish, along with several different types of
tail fins/caudal fins. Secondly, is a diagram of
other features, as well as different types of fish
mouths.
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External Anatomy
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Mouth & Fins
As Darwin would tell you, different environments
arise different adaptations. The reason fish have
various forms of caudal fins or mouths is because of
how they have adapted, or evolved, to meet their
needs within their environment. For example, some
fish that feed on the surface have an upturned,
"superior" mouth, while those that feed on the
bottom, such as catfish, have downturned, "inferior"
mouths. Caudal fin variation depends on whether the
fish's body is more streamlined, whether it is a
predator, what type of habitat it is from, etc. caudal fins.
The adipose fin is only present on some fish, such
as tetras, catfish and salmon.
The Cichlid Writer |
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