Answer: it's unclear why marsupials thrived in Australia. however one plan is that once times were powerful, marsupial mothers might jettison any developing babies they'd in their pouches, whereas mammals had to attend till gestation was over, defrayment precious resources on their young, Beck said.
Explanation:
Hello there! Yes, all of South America is below the Tropic of Cancer. The Tropic of Cancer is located at 23.5 degrees north, which includes part of northern and all of Central America, And all of South America is below that. Here is a map below:
It was the Inca that used mortar to fit giant stones together,