When the Land Bridge Formed Between North and South America

Question

When the land bridge formed between North and South America,
A) character displacement occurred.
B) marsupials invaded North America.
C) placental mammals invaded North America.
D) placental carnivores drove some marsupials extinct.
E) none of the above

Accepted Answer

The formation of the land bridge allowed placental mammals, including carnivores, to migrate into South America, where they outcompeted and led to the extinction of some marsupial species.