Question

The wooly mammoth and the modern-day elephant share a common ancestor. Mammoths were large mammals that lived in cold areas. They were protected by thick layers of fur. What adaptations enabled elephants to evolve and survive in today’s climate? (multiple choice)
1.They don’t have fur to regulate their body temperature.
2.They have bigger ears to prevent overheating.
3.They are more aggressive.
4.They have a carnivorous diet.
5.They know how to swim.

Answer 1

They have bigger ears to prevent overheating

Answer 2

The answer is 1,2 and 5. 
Elephants lost their fur because they live in warmer climates and instead have larger ears to regulate their body temperature. They are excellent swimmers too.