Clownfish
Clownfish are small, colorful saltwater aquarium fish, most commonly the captive-bred Ocellaris clownfish (Amphiprion ocellaris) popular as pets.
Estimated value as of 2026 · Source: Standard captive-bred Ocellaris clownfish retail price from multiple aquarium re…
Fun Fact
Common clownfish typically live in symbiosis with sea anemones, gaining protection while providing food scraps to the anemone.
More in Nature
Californium-252 (per gram)
Californium-252 is a synthetic radioactive element produced in nuclear reactors, valued as an exceptional neutron source for medical and industrial applications.
Dog Collar
A dog collar is a band worn around a dog's neck, typically made of nylon or leather, used for identification, control, and attaching leashes.
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
Moon Rock Sample (From Apollo 17 Mission)
Lunar basalt specimen collected during humanity's final Apollo mission in 1972.