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Transcript of Adaptations
The meaning of adaptations
Adaptations refers to a trait that an animal develops in order to survive for example: adaptations to hunting at night, a hot or cold environment, for feeding, for movement etc.
Take a carnivorous plant like a Venus flytrap for example, it's trap's opening looks like a piece of raw flesh. But when a fly lands on it, the trap clamps on the fly tightly. It releases digestive enzymes to digest it's prey.
Adaptations for catching prey
-Cheetahs are very fast creatures.
-They do not hunt in groups.
-Cheetahs and Hyenas are competitors for food.
The amount of toxin in 1 puffer fish is enough to kill 30 adults. But surprisingly, tiger sharks are immune to this toxin, and they can swallow this fish even when it is inflated. The puffer fish is one of the most interesting and unusual species of fish with several unique characteristics. When it feels threatened, it puffs up to double its size by swallowing water or air. But this is an adaptation which slows them down (puffed up state is not a streamlined shape). Some puffer fish species have tiny spines which only become visible when they inflate themselves.
But despite this, many people especially the Japanese, treat the puffer fish as a delicacy. The chef must be trained for a long time before they are ready to serve the public. But despite this, more than a hundred people die from puffer fish poisoning each year. The puffer fish poision is deadlier than cyanide,a very deadly chemical.
Venus Fly Trap
Either it's a behavioral adaptation or structural adaptation, predators always find ways to catch their prey. Below are some examples...
If you have noticed,there are trigger hairs on the flytraps. The flytrap's trigger hair must be touched twice in order for it to close.If rain triggers it, it will close for several hours before it opens again. The two-time trigger is an adaptation to maximize capture and save time.
Adaptations of catching prey