Grunion shrimp. An isopod, two species of flies, sandworms, and a beetle have been found preying on the eggs. Some shorebirds such as egrets and herons prey on grunion when the fish are on shore during spawning. Seagulls, sea lions, and larger fish such as sand sharks have also been observed feeding on grunion during a grunion run. The reduction of spawning habitat due to beach erosion, harbor construction, and pollution is believed to be the most critical problem facing the grunion species. Despite local concentrations, the grunion is not an abundant species. While the population size is not known, all
Revenge of the Creature debut of Clint Eastwood, who appears uncredited as a lab technician named Jennings early in the story. He is shown having a discussion with Professor Ferguson, accusing a test subject cat of eating a lab rat, only to find the rat in his lab coat pocket. Critically reviewed in "The New York Times", "Revenge of the Creature" was dismissed as a fourth-rate sequel with the comment, "... away we go, as before." Other than some interesting sequences involving the setting, "What is probably the most unusual aquarium in the world makes a nice, picturesque background indeed ..." the review was