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Animal Unit Timeline

Across
He published a book about birds in 1827.
In 1935, Francis Sumner studied protective coloring of this animal.
Jane Goodall began research on this animal in 1960.
Last name of the scientist who developed first insect classification system in 1775.
Down
John Ray identified whales as these, in 1693.
This happened to the dodo bird in 1681.
In 1610, he used a microscope to study insects.
Name of the ship that researched marine life in 1882.
The country where the first vet school was located in 1761.
This was first constructed in 1839.