#ichthyology

Good News: Devils Hole Pupfish are Rebounding After a Dramatic Decline.

In response to earthquakes which caused limited food and a sharp population decline in 2025, the multiagency team, made up of U.S. Fish and Wildlife Service, National Park Service and Nevada Department of Wildlife biologists, acted quickly and released a number of captive reared Devils Hole pupfish back to the wild. This action was instrumental in ensuring the wild population’s survival and was the first time that captive Devils Hole pupfish have been returned to the wild. Currently, the wild population is around 70, nearly double the numbers seen in 2025. Did you know: The Devils Hole pupfish is believed to have the smallest geographic distribution of any known vertebrate species? It exists in a single submerged cave system, Devils Hole, within Ash Meadows National Wildlife Refuge in Nevada. The depth of Devils Hole is unknown. Professional scuba divers from the National Park Service have mapped Devils Hole’s depth to nearly 500 feet, but the bottom has never been found.

Well.

Did you know that tuna literally cannot stop swimming?

Unlike most fish, they lack the ability to pump water over their gills and must constantly swim with their mouths open just to breathe. These top ocean predators are vital to marine ecosystems. Atlantic tunas are also built for speed! With torpedo-shaped bodies, species like the albacore can race through the water at more than 50 miles per hour. Even cooler: Bluefin tunas are warm-blooded, which gives them the muscular power to thrive and hunt in both arctic and tropical waters.

Read more: https://www.fisheries.noaa.gov/feature-story/fun-facts-about-atlantic-tunas

If anyone can help identify this fish. I saw it in a relaxation fish compilation video swimming in a coral reef. Here is an artist's rendition