CAL Academy of Sciences - San Francisco, CA

Scuba Diver at CAL Academy of Sciences talks with vistors from inside the aquarium.

Scuba Diver at CAL Academy of Sciences talks with vistors from inside the Steinhart Aquarium.

The Chambered Nautilus (Nautilus pompilus) is a "living fossil" species which is largely the same as it was more than 400 million years ago.

The Chambered Nautilus (Nautilus pompilus) is a "living fossil" species which is largely the same as it was more than 400 million years ago.

Scuba Diver at CAL Academy of Sciences talks with vistors from inside the aquarium.

Scuba Diver at CAL Academy of Sciences talks with vistors from inside the Steinhart Aquarium.

Weedy Sea Dragon - CAL Academy of Sciences, San Francisco.

Weedy Sea Dragon - CAL Academy of Sciences, San Francisco.

Albino Alligator

Albino Alligator

Weedy Sea Dragons. 1/160 sec at f/2.8, ISO 2500, 95mm.

The Chambered Nautilus (Nautilus pompilus) is a "living fossil" species which is largely the same as it was more than 400 million years ago.

The Chambered Nautilus (Nautilus pompilus) is a "living fossil" species which is largely the same as it was more than 400 million years ago.

CAL Academy of Sciences - San Francisco

Neptune's Eye - Looking down on the observation dome under the Steinhart Aquarium at California Academy of Sciences, San Francisco, CA.