Life in a rock pool
Rock pools are teeming with all kinds of creatures.
Limpets are a kind of shellfish. They live on rocks and in pools at shorelines. Here, they eat slimy, green algae, but they have to withstand the crashing tide. They cling to the rock with their muscular foot, only moving when the tide is out.
Limpets are a kind of shellfish. They live on rocks and in pools at shorelines. Here, they eat slimy, green algae, but they have to withstand the crashing tide. They cling to the rock with their muscular foot, only moving when the tide is out.
Some anemones fight with harpoons.
Bead-let anemones will sometimes fight over a feeding ground.
Their weapon is the poison they usually use to stun their prey.They shoot tiny hooks like harpoons at each other until the weakest om gives in.
Their weapon is the poison they usually use to stun their prey.They shoot tiny hooks like harpoons at each other until the weakest om gives in.
(Starfish are relatives of brittle stars, Sea urchins and sea cucumbers.)
(Anemones are named after flowc because of their petal-like arms.)
Starfish can grow new arms.
They may have as main] as 40 arms, or rays. It a predator grabs hold of one, the starfish abandons the ray, and uses the others to make its getaway!
They may have as main] as 40 arms, or rays. It a predator grabs hold of one, the starfish abandons the ray, and uses the others to make its getaway!
Hermit crabs do not have shells.
Most crabs shed their shells as they outgrow them, but the hermit crab does not have a shell. It borrows the leftover shell of a dead whelk or other mollusc – whatever it can squeeze into to protect its soft body. These crabs have even been spotted using a coconut shell as a home.
Most crabs shed their shells as they outgrow them, but the hermit crab does not have a shell. It borrows the leftover shell of a dead whelk or other mollusc – whatever it can squeeze into to protect its soft body. These crabs have even been spotted using a coconut shell as a home.
Aponges are animals!
They are very simple creatures that filter f food from sea water. The natural sponge that you might use in ,ljhe bath is a long jtdead, dried-out sponge.
They are very simple creatures that filter f food from sea water. The natural sponge that you might use in ,ljhe bath is a long jtdead, dried-out sponge.
(There are about 4500 different types of sponge in the sea.)
(Hermit crabs protect their soft bodies in a borrowed shell.)
Sea urchins wear a disguise.
Green sea urchins sometimes drape themselves with bits of shell,pebble and seaweed.
This makes the urchin more difficult for predators,or hunters,to spot.
Green sea urchins sometimes drape themselves with bits of shell,pebble and seaweed.
This makes the urchin more difficult for predators,or hunters,to spot.
QUIZ
find the shell?
Can you find the names of four shells in the puzzle below ?
1.alcm
2. lesmus
3. teroys
4. hewkl
Life in a rock pool
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