lesson 6: adaptation become an ocean explorer (ages 7-11)
TRANSCRIPT
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Lesson 6:Adaptation
Become an ocean explorer (ages 7-11)
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How many stonefish can you see?
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Can you see them now?
How have they adapted to survive on the reef?
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.
Charles Darwin
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Speed (jacks)
These big-eyed trevally are extremely fast swimmers. This means that they can escape from bigger predators.
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Shoaling (silverfish)
Sea cucumbers are designed a bit like hoovers, sucking up the sandy bottom and taking out any food.
Sea cucumbers have a defence trick of launching their guts out of their anus to scare of predators.
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As we saw before, some animals use camouflage to hide from predators and to sneak up on prey, like these stonefish.
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Ambush (mantis shrimp)
Mantis shrimps hide in small holes in the reef, waiting to ambush their prey. They use their claws to smash or spear small fish.
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Venom (triton’s)
The crown of thorns starfish is covered with spines and is also poisonous to protect it from predators.
This starfish has a special way of eating coral, by sucking onto the coral and throwing up its stomach and special enzymes to dissolve the coral polyps.
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Beaks (parrotfish)
This parrotfish has a special ‘beak’ to scrape the coral and algae from the reef. Why do you think it is called a parrotfish?
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Mucus bubble (parrotfish)
This parrotfish has developed a safe way of sleeping. At night it envelopes itself in a mucus bubble. This stops predators smelling it out on the reef.
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Hoover (manta ray)
Can you see how this manta ray is designed to ‘sieve’ the sea for microscopic algae and animals?
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Speed and smell (sharks)How is this tiger shark designed to survive on the reef? How does it get its food?
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Symbiosis (anemonefish)
This clownfish has developed a symbiotic relationship with the sea anemone. The sea anemone provides protection from predators, and the clownfish wards off other fish who try to eat the anemone.
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All images and photos Catlin Seaview Survey
Photo credits