Gastroliths in Other Species
As mentioned earlier, crocodiles aren't the only animals that utilize gastroliths. Gastroliths are most commonly found in birds, including chickens, penguins, ostriches, toothed whales, and seals. Furthermore, many fossilized plant-eating dinosaurs have been found with gastroliths in their bodies.
As mentioned earlier, crocodiles aren't the only animals that utilize gastroliths. Gastroliths are most commonly found in birds, including chickens, penguins, ostriches, toothed whales, and seals. Furthermore, many fossilized plant-eating dinosaurs have been found with gastroliths in their bodies.
Below is a video clip of a female Kestrel ingesting several gastroliths.
http://www.youtube.com/watch?v=XZ8zK7_C3go
Pictured to the right is the Psittacosaurus fossil with gastroliths in its stomach region.
Picture to the left is an x-ray of an emperor penguin revealing a stomach partially filled with gastroliths.