The California Academy of Sciences launched its new Shark Lagoon Cam on Thursday, which features a lovely mix of Blacktip Reef sharks and Bamboo sharks, Cownose rays, Honeycomb rays, and Blue-spot stingrays, along with Mono fish, Longnose Butterfly fish, and Raccoon Butterfly fish, all swimming amongst mangrove trees and a colorful Philippine coral reef.
The cam is accompanied by a wealth of information on the various species that live in the lagoon, many of which are at risk of becoming extinct. You can also take a snapshot of the fish that are currently on view and post it on Cal Academy's Flickr page.
Also, be sure to check out the Penguin Cam and the Farallones Cam.