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Life Science 4.3.6 - 4.3.8

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