Porcupines are large, slow-moving rodents with sharp quills on their backs. They are found on every continent except Antarctica.
Now that all of the ice has left the rivers and lakes the osprey have returned to Minnesota. Osprey are found on every continent in the world except for Antarctica. They nest on all continents except Antarctica and South America. Os...
Researchers hope to exploit the porcupine quill's unique properties to develop new types of adhesives, needles and other medical devices.
BOSTON, MA—Researchers from Brigham and Women's Hospital (BWH) have uncovered how North American porcupine quills easily penetrate tissues and why, once lodged in flesh, they are often difficult to remove. read more
Fish-eating spiders inhabit every continent except Antarctica, according to a new study.