Did the plants and animals of Gondwana have to change in any way to survive?
All animals and plants have to change or adapt all the time to survive. These changes are very slow, but can be seen by looking at the fossil record. During the cold times in Gondwana (around 270 million years ago), only animals and plants that were able to survive in cold environments were able to survive there, but once the continent warmed up other animals were able to live there, and cold-adapted animals either had to find mountain tops to live on (where it stayed cold), or adapt to the new warm environments. As plants were unable to migrate, they changed or died.
