ANIMALS

LAMARCK AND DARWIN’S EVOLUTION THEORIES

VOCABULARY

NECK

LONG AND SHORT

SHORT

LONG

STRETCH

LEAVES

SHORT NECK GIRAFFE

LONG NECK GIRAFFE

LAMARCK

Lamarck's Theory:  Giraffe's inherited long necks from short necked ancestors who continually stretched their necks to reach food.

https://www.youtube.com/watch?v=Ttwl597a9Ds

https://www.youtube.com/watch?v=y4bIcswVZMU

DARWINDarwin's Theory:  Long necked and short necked giraffes once existed together, but the long-necked giraffe had an adaptive advantage.

https://www.youtube.com/watch?v=vnktXHBvE8s