One of the biggest quests in biology is understanding how every cell in an animal's body carries an identical genome yet still gives rise to a kaleidoscope of different cell types and tissues. A ...
Certain animals store oxygen in their muscles using myoglobin protein. This adaptation allows marine mammals like seals and whales to dive for extended periods. Birds and semi-aquatic mammals also ...
For a flat sea creature just a few millimeters across, a gentle poke is instantly recognized as danger. Trichoplax adhaerens—a translucent blob with no head, brain or muscles—scuttles away in seconds ...