The Layers of Narwhal's Tusk Tell The History of Its Life in a Rapidly Changing World
Science Alert,
From the outside, the narwhal's unicorn-like tusk is a striking curiosity. On the inside, this long protruding tooth contains…
From the outside, the narwhal's unicorn-like tusk is a striking curiosity. On the inside, this long protruding tooth contains…
Polar bears’ switch to land foods showing up in lowered mercury levels - Alaska Dispatch News For polar bears pushed to shore…