giraffes lamark vs darwin
TRANSCRIPT
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