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Snakes. There are over _____ different species of snakes alive today. They live in a variety of land and water habitats. But the largest snakes are found in __________________. 2,000. tropical rainforests.
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There are over _____ different species of snakes alive today. They live in a variety of land and water habitats. But the largest snakes are found in __________________. 2,000 tropical rainforests
Snakes are found on every continent except ____________.There are no snakes native to Hawaii, Iceland, Ireland, or New Zealand.
Snakes have long, narrow bodies and ______ skin. They have no ________, no external ear openings, and no ____. scaly eyelids legs
As they grow, snakes _____ their old skin and the film that covers their eyes. shed
carnivores Snakes are ___________ (meat-eaters). They eat rodents and other mammals, birds, reptiles, fish, amphibians, insects, and eggs.
Some snakes have patterns that allow them to both _____ from enemies or to hide until they can ________ their prey. hide capture Can you see the copperhead?
Some snakes are __________ and kill (or paralyze) their prey by injecting venom through hollow ______ . venomous fangs
Some snakes (like boas and the anaconda) kill their prey by __________ it to death. Snakes do not chew their food or even bite it into pieces; snakes swallow their food _____. squeezing whole Snake eating a kangaroo
Clips of snakes eating Cobra vs. Rat Snake http://www.youtube.com/watch?v=Cn6K6kc5kGA Thrasher vs. King Snake http://www.youtube.com/watch?v=rsC-QnabAJs Attack of the Two-Headed Snake http://www.youtube.com/watch?v=HJ-fnPLEX8o World’s Deadliest Snakes (44 min.) http://www.youtube.com/watch?v=rsC-QnabAJs
Which snake is the biggest and heaviest? The Anaconda of South America
What is the longest snake? Reticulated Python (over 10 m long)
Which snake is the fastest? Probably the poisonous black mamba. It has been recorded at 12 mph.
Which snakes are the most poisonous land snakes? The taipan, black mamba, and krait. Krait Black Mamba Taipan
Alligators are large, _____________reptiles that spend a lot of their lives in the ______. They mostly live in swamps, marshes, canals, and lakes. meat-eating water
Alligators swim very well, mainly using their ________to propel themselves through the water, and also using their • __________ feet. webbed An American alligator’s tail An albino alligators webbed feet
There are two types of alligators. The __________ alligator which grows up to ____feet long, weighing up to 600 pounds and the _________ alligator which grows to be about __ feet long . American 19 Chinese 6
Alligators are __________and feed primarily at night. Adult gators eat fish, birds, turtles, reptiles, and mammals. They swallow their prey _________. nocturnal whole
spring Alligators breed in the ______ and the female lays up to ____ eggs in a large nest she constructed of mud, leaves and twigs on the dry ground. 50
The temperature of the nest determines the sex of the hatchlings. If the eggs are incubated over _____°F the embryos develop as ________; if the temperature is below ____°F the embryos will be _________, between these temperatures, ____________are produced. 93 males 86 females both sexes
2 months The eggs hatch in _________, producing babies about 6 inches long. The group of babies, called a _____, are protected by the female for about a ______. Alligators are among the most __________ of the reptiles. WATCH VIDEO OF ALLIGATORS BEING BORN pod year nurturing http://video.search.yahoo.com/video/play?p=alligator+hatching&ei=UTF-8&fr=slv8-hpd10&fr2=tab-img&tnr=21&vid=000164132789
Crocodile – Notice “V” shaped head. Alligator – Notice “U” shaped head.
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