However, this subspecies appears to be extirpated or near extirpated ... BREEDING: Although little is known about the San Bernardino flying squirrel's breeding biology, other northern flying squirrels ...

The difference in what these birds prefer when it comes to choosing a mate is helping scientists unlock one of biology's greatest ... Currently, there are six subspecies of barn swallow, each ...

Data from both southern right whales and North Atlantic right whales, a subspecies that live along the east coast of North America and is also endangered, was used. The researchers found that sout ...