LIFE SCIENCE

Detailed explanation-1: -Whales and hippos share several adaptations to life in an aquatic environment, including oil-producing skin glands, the lack of hair, and the use of underwater vocalizations for communication.

Detailed explanation-2: -Hippos and whales may look different in many ways, but they are actually each others’ closest living relatives-sharing a common ancestor that lived about 55 million years ago.

Detailed explanation-3: -In fact, hippopotamus are actually whales’ closest “cousins”, and they’re much more closely related than you might guess. Based on their fossil record, scientists have determined that whales are related to land dwelling mammals that lived on Earth between 52 – 47 million years ago.

Detailed explanation-4: -Furthermore, the DNA testing revealed that whales share a DNA sequence found only in one other animal-indicating that among all the non-whale mammals alive today, whales’ closest living relatives are none other than hippopotamus!