Acorn Worms

Some articles on acorn worms, worm, worms:

Acorn Worm - Anatomy - Similarities To Chordates
... Acorn worms are considered more highly specialised and advanced than other similarly shaped worm-like creatures ... Acorn worms have gill-like structures that they use for breathing, similar to the gills of primitive fish ... Therefore, acorn worms are sometimes said to be a link between classical invertebrates and vertebrates ...
Timeline Of Human Evolution - Timeline - First Living Beings
540 Ma Acorn worms are considered more highly specialised and advanced than other similarly shaped worm-like creatures ... Acorn worms have a gill-like structure used for breathing, a structure similar to that of primitive fish ... Acorn worms are thus sometimes said to be a link between vertebrates and invertebrates ...
Acorn Worm - Lifestyle
... Acorn worms are rarely seen by humans because of their lifestyle ... The worms lie there with the proboscis sticking out of one opening in the burrow ... Acorn worms are generally slow burrowers ...

Famous quotes containing the word worms:

    Of comfort no man speak.
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    William Shakespeare (1564–1616)