🦄 Narwhal fun facts!🦄 Did you know that the long spiral tusk of a narwhal is actually a tooth? 🦷 Narwhals are born with only two teeth, and in males, one of them grows into that iconic tusk. The other one stays hidden. Their mouths are all gum — talk about a way to keep dentist bills down! 😄💸 Bonus: It’s almost always the left tooth that turns into a tusk! Both teeth erupting is very rare, and it’s even rarer for females to have tusks! 🌊 #wildlife #marinelife | WWF-Australia

Beluga whales share Greenland with a mysterious cousin: the narwhal. Despite their similarities, they don't usually interact. This young narwhal is lost and seems to be accepted by the group of Beluga whales he encounters. Tune in to Secrets of the Whales on Sundays at 8pm, on National Geographic WILD UK. | National Geographic UK