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Life Science 4.3.6 - 4.3.8

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Across
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All birds have ____
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Scientist who studies birds
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Birds' _____ are hollow and light
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These all have hair
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Part of an egg rich in fat and protein
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Moles belong to this order of mammals
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____ feet have 2 toes in the front and 2 toes in the back
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Order humans are part of
Down
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Kangaroos and koalas are ____
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Lions and tigers and bears belong to this order
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1 type of egg-laying mammal
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Used by bats and dolphins to navigate
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Another word for warm blooded
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____ feet have 3 toes in the front and 1 in the back
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This class of mammals has no teeth or poorly developed teeth
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Hawks and eagles have ___ shaped beaks
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Type of feather that gives a bird lift
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Jane ____ did research with chimpanzees
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Another name for a bird's breastbone
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These flying mammals help control insects
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Order rats belong to
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Not all birds fly, but all birds have ______
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Type of feather that gives a bird's body streamline shape