Question

Megafauna were large mammals adapted for high-heat environments.

True

False

Answer 1

It is false that Megagauna were large mammals adapted for high-heat environments.

Megafauna is large-sized or giant animals of an area, habitat, or geological period.

According to Bergmann's rule, large body size animals are not adapted for high-heat environments because large-size animals have a lower body surface area to volume ratio. Therefore they can stay warmer by radiating less body heat per unit of mass.

Thus, a large body-sized mammal stores more heat than a small-sized one, which is not in favour of survival in a high-heat environment and hence it cannot be adaptive.