It is also known as Z-shaped deformity of the thumb. However, the great hammerhead's enormous size and fierceness make it potentially dangerous, though few attacks have been recorded. The medical term for hitchhiker’s thumb is distal hyperextensibility. Most hammerhead species are fairly small and are considered harmless to humans. Their extra-tall, pointed dorsal fins are easily identifiable.
They are gray-brown to olive-green on top with off-white undersides, and they have heavily serrated, triangular teeth. It can grow up to 20 feet in length and weigh up to 1,000 pounds, although smaller sizes are more common.įound in temperate and tropical waters worldwide, far offshore and near shorelines, hammerheads are often seen in mass summer migrations seeking cooler water. The great hammerhead is the largest of the nine identified species of this shark. The hammerhead's increased ampullae sensitivity allows it to find its favorite meal, stingrays, which usually bury themselves under the sand. I first noticed that Jack had what was called hammer thumbs (enormous, hammer-like oversized digits) on each hand. One group of sensory organs is the ampullae of Lorenzini, which allows sharks to detect, among other things, the electrical fields created by prey animals. And by spreading their highly specialized sensory organs over their wide, mallet-shaped head, they can more thoroughly scan the ocean for food. a left palm with a hurt bending downwards. Clubbed thumbs can lead to a whole mess of headaches throughout the day, but luckily. carpenter with hammer and injured fingers. All of us with normal thumbs dont appreciate how good we have it. Man feeling his sore hand after having hurt himself while. Their wide-set eyes give them a better visual range than most other sharks. Browse 511 hammer thumb stock photos and images available, or search for treehouse or man hammering nail to find more great stock photos and pictures. The Costa Rica Herbazu SL-28 was stellar. Hammerhead sharks are consummate predators that use their oddly shaped heads to improve their ability to find prey. Inspired by some very poorly labeled mini discs I found (I no longer have a player to check actual listings) The mix is not great but contains tracks off. Thumbs up to the unanimous best cup from our 2 day stint in San Francisco served up by Verve.
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