They are related to star fish and sea cucumbers.
They eat sponges and mussels.
They have five teeth.
Tuesday 31 January 2012
Sea urchins
Sea urchins have lots of spines.
They are related to star fish and sea cucumbers.
They eat sponges and mussels.
They have five teeth.
They are related to star fish and sea cucumbers.
They eat sponges and mussels.
They have five teeth.
Ghost crabs
Ghost crabs are scavengers.
They eat dead fish.
They live in burrows.
They use their claws to eat.
Monday 30 January 2012
Six gill sharks
Six gill sharks have six gills.
All other sharks have five gills.
They are found at depths of up to 3000 meters.
At night they come up to the surface to eat.
All other sharks have five gills.
They are found at depths of up to 3000 meters.
At night they come up to the surface to eat.
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