How Do We Know That Dinosaurs Had Lice

question 48

Multiple Choice

How do we know that dinosaurs had lice?

• A)Dinosaur fossils show clear evidence of louse eggs and bites.
• B)Lice are found only in birds and mammals. The common ancestor that lice evolved on must have been the common ancestor of these two groups, a dinosaur.
• C)Dinosaur DNA has been found in the guts of fossilized lice.
• D)The DNA of both mammalian and bird lice contains sequences that are unique to dinosaur DNA. Lice can only have obtained these sequences if they lived on dinosaurs.

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