Narwhals are often called the unicorns of the sea. The long tusk of the male narwhal sets these whales apart, but it’s not the only thing that makes Monodon monoceros among the most intriguing and ...

For one of the most mysterious animals in the oceans, size really does matter. That's the upshot of a new study that finally answers why, unlike every other whale alive today, narwhals evolved their ...

Narwhals are often called the unicorns of the sea. The long tusk of the male narwhal sets these whales apart, but it’s not the only thing that makes Monodon monoceros among the most intriguing and ...

Narwhals are often referred to as the ‘unicorns of the sea’ because of the unicorn-esque tusks they grow on their heads. There’s no question that the narwhal’s discernible tusk makes it one of the ...

Narwhals are often called the unicorns of the sea. The long tusk of the male narwhal sets these whales apart, but it’s not the only thing that makes Monodon monoceros among the most intriguing and ...

The long, spiral tusks of narwhals could be used by these Arctic whales to stun or even kill prey, according to wildlife researchers who have spied on these elusive creatures using drones. They ...

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Narwhal whales live in social groups called pods and live in the Arctic ocean. Experts disagree on the purpose of males' tusks. (Corey Ford | Getty Images/iStockphoto) The long, spiral tusks of ...