The Arctic Ocean is one of the most inaccessible and yet beautiful environments on Earth, due to its formidable ice and snow cover, total darkness during the winter, blizzard winds, and bitter cold.

Greenland sharks (Somniosus microcephalus) live a very long life... but that doesn’t mean it’s a comfortable one. One of the largest cartilaginous fishes, scientists have estimated Greenland sharks ...

Say hello to the Greenland shark (Somniosus microcephalus), also known as the gurry shark, grey shark, sleeper shark, or by the Inuit name Eqalussuaq. It's the second largest carnivorous shark after ...

For thousands of years, we’ve been searching for a way to extend our lives — without much luck. The average human lifespan in developed countries has more than doubled from 37 to 79 in the past 200 ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

A big sperm whale, scientifically known as Physeter microcephalus, was freed after getting entangled in a fishing net in the coastal waters near Ormara, Balochistan. The World Wildlife Fund for Nature ...

This is a preview. Log in through your library . Abstract Seasonal changes in breeding activity of the landlocked three-spined stickleback Gasterosteus aculeatus microcephalus, f. leiurus were studied ...