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Baron
Georges Léopold Chrétien Frédéric
Dagobert Cuvier proved that
species have become extinct over the
ages, was a proponent of the theory of
catastrophism, developed the theory that
an animal's anatomy adapted to its
"conditions of existence," and
was one of the first to classify animals
into kingdoms according to anatomical
similarities. |
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About
the Phylum Mollusca The word "Mollusca"
comes from the Latin molluscus,
or soft. Including such diverse
animals as snails, oysters and octopuses,
this is one of the most familiar of all
the large animal groups. |
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Trap-Door
Spiders are
so-named because of their habit of
digging a burrow into the ground, which
is lined with silk, and capping the
burrow with a trap-door made from layers
of silk and earth. |
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Haddock
(Melanogrammus
aeglefinus)
The haddock is distinguished from other
members of the cod family by its three
dorsal fins, a small barbel on the chin,
and by the dark patch on the flank just
behind the gills. |
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Boa
Constrictor (Boa
constrictor)
The most distinctive feature of this
snake is the head, which
has a dark stripe running dorsally from
the snout to the back of the head, a dark
triangle between the snout and eyes, and
a continuation of that triangle behind
each eye that slants downward towards the
jaw. |
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The Bald
Eagle (Haliaetus
leucocephalus) is one of the most easily
recognized birds, with its bright white
head and tail. The term "bald"
does not refer to the eagle appearing
"hairless," the word actually
once meant "white." It has been
the national bird of the United States
since 1782. |
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The Blue
Whale (Balaenoptera
musculus) is the largest animal to have
ever lived, dwarfing even the largest
dinosaurs. Adults average 80 to 105 feet
in length and weigh up to 200 tons. The
tongue is as heavy as an elephant, and
the heart the size of an automobile. |
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