« Back to the Sea lamprey (Petromyzon marinus)
Lampreys are some of the most primitive vertebrates alive today. They are known as cyclostomes, which means 'round mouths' and refers to the…
More about the river lamprey »
The brook lamprey (Lampetra planeri) is the smallest of the British lampreys, and has two dorsal (back) fins which are in close contact…
More about the brook lamprey »
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Watch the feather-legged assassin bug in action.
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