sharkToday we’re going to look at one of my favorite fish---the shark. As you know, sharks have a __________ for being very _________ creatures capable of injuring or killing humans, and I’d like to talk about sharks in ________. Sharks are rather large fish, often...
Today we’re going to look at one of my favorite fish---the shark. As you know, sharks have a __________ for being very _________ creatures capable of injuring or killing humans, and I’d like to talk about sharks in ________. Sharks are rather large fish, often growing to over ten metres, and the longest shark was caught in Australia have reached ____ metres. Sharks vary in weight with _____ and _____, of course, but the heaviest shark caught in Australia was a White Pointer --- that weighed __________kilograms---quite a size! Sharks have a different _________ to most fish: instead of a skeleton made of ______, they have a tough elastic skeleton of _______. Unlike bone, this firm, pliable ______ is rather like your nose, and allows the shark to bend easily as it swims. The shark’s skin isn’t covered with ______ like other fish, instead the skin is covered with ______, giving it a rough texture like ________. As you know, sharks are quick swimmers. This is made possible by their ____, one set at the side and another set ________ the body, and the ______ also helps the shark move forward quickly. Unlike other fish, sharks have to keep swimming if they want to stay at a _________ depth, and they rarely swim at the ________. Mostly, they swim at the _______ of the ocean, scavenging and picking up food that’s lying on the ocean ______. While most other animals, including fish, hunt their prey by means of their _______, sharks hunt eventually by _____. They have a very acute ___________---- and can sense the _______ of food long before they can see it.
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