Potentially one of the cutest sleeping habits in the animal kingdom belongs to the sea otter. When sleeping, sea otters stay in the water in order to avoid land predators. However, to ensure that they ...

We have known for decades that sperm whales are highly intelligent and social. They are the largest of the toothed whales, ...

Sperm whales also sleep vertically with their heads just beneath the surface of the water, and no one knows why. One thing scientists do know about sperm whales is that they typically live 70 years.

Justin Parkin-Rae takes a break from pulling chunks of weeds from one of the many rivers that snake through Kaikōura, a ...