biology girl
The large tusk on the narwhal is actually it’s left canine tooth. These are present in both males and females, but they grow much longer in males. There are instances in which both the left and right canine grows out, giving the marine mammal two tusks.

The large tusk on the narwhal is actually it’s left canine tooth. These are present in both males and females, but they grow much longer in males. There are instances in which both the left and right canine grows out, giving the marine mammal two tusks.