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Killer whales can die from ... toothache
Oceanography

Killer whales can die from ... toothache

According to a new survey published in the journal Archives of Oral Biology, 29 killer whales in captivity in the US and Spain have dental problems.

May 29, 2019
What happens if the Earth only has a cold season?
Discover science

What happens if the Earth only has a cold season?

Seasons formed by the tilt of the Earth. The Earth's axis, the imaginary straight line, passes through the north and south poles that the Earth revolves around, not vert…

May 28, 2019