Seals belong to a large clade of semi-aquatic animals called Pinnipeds. This clade also includes sea lions and walruses. However, they are all referred to as seals. There are over 30 species of ...

Shasta Cascade constitutes roughly one quarter of California’s total geologic ... belong to the Ring of Fire that encircles the Pacific. For over 2.6 million years, the Cascades have weathered ...