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This shell, composed of a carapace in the back and a plastron on the belly, is made of bony plates. Wetlands 60 seconds. Both sexes may look similar, but females are typically not as brightly coloured and have shorter tails than males.

There are about 320 species of turtles throughout the world, inhabiting a great variety of terrestrial, freshwater and marine ecosystems on every continent except Antarctica and its waters.

A raven may live up to 21 years in the wild, making it one of the species with the longest lifespan in all passerine birds. Males tend to be smaller than females, reaching a size of about 0.

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A third type of swan, the Eurasian Mute Swan, is often seen in Canadian parks and zoos. Atlantic Whitefish 60 seconds. It resembles the larger male Canvasback. Both terms are from the Latin: The call is pitched lower than a whistle and more closely resembles a blowing or tearing sound. The adult winter plumage, which looks like the juvenile plumage, lacks the black head and breast bands. The outer vanes of these feathers look as if they have been sprayed with aluminum paint.

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Mountain Sheep Video. The number of species that breed in Canada are shown in parentheses. Wetland Wonderland webisode. In the male the broad band of dark colour in the tail is usually unbroken. Northern Gannet Video.

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Thus, the length of the tusk may indicate social rank through dominance hierarchies and assist in competition for access to females. The feathers of the head and the upper part of the neck often become stained orange as a result of feeding in areas rich in iron salts.

Its bright orange legs match its orange, black-tipped bill. Large females turn dark grey or silver when they mature. The Woodchuck —- The Second City.