Different kinds of sharks have intestines with different spiral patterns that favor fluid flow in one direction. Ido Levin and colleagues are recreating those shapes…
Posts published in “Sharks”
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Scientists have sequenced to chromosome level the genomes of great hammerhead and shortfin mako sharks, showing that their populations have declined over 250,000 years. Credit:…
New 3D model shows that megalodon could eat prey the size of entire killer whales. Credit: J. J. Giraldo Megalodon, the largest shark that ever…
Lead author Alison Towner with the carcass of a Great White Shark washed up on shore following an Orca attack. Credit: Marine Dynamics/ Dyer Island…
Wouldn’t it be amazing to generate a new limb or other body parts after an injury? Some lucky animals can! It would be wonderful if…
Megalodons are known only from the teeth they left behind. Here, a megalodon tooth (left) is compared to a great white shark tooth. Each inch…
Researchers analyzed zinc isotopes in teeth and discovered that great white sharks make have contributed to the extinction of megalodon. Scientists investigated the diet of…
A hunt gone wrong! Artistic reconstruction of Otodus megalodon feeding upon an ancient swordfish ~11 – 3.7 million years ago. A puncture injury to the…
Blue Shark Pet owners may unknowingly be feeding their pets with meat from endangered shark species, shows a new study published in Frontiers in Marine…
Reconstruction of a full-scale Megalodon and a set of teeth at the Museo de la Evolución de Puebla in Mexico. Credit: Luis Alvaz Extinct shark’s…
Artist’s illustration of the Megalodon. However, new scientific research shows that no one knows what the Megalodon really looked like. Latest study reveals no one…
A new study finds that using lighted nets greatly reduced accidental bycatch of sharks, rays, sea turtles, and unwanted finfish. Credit: NOAA Fisheries LED illuminated…
In a new study, Neil Hammerschlag, Ph.D., and colleagues used multiple approaches to evaluate the effects of ocean warming on tiger shark movements in the…
New shark-vision models show that many shark bites by great whites may be a case of mistaken identity, as surfing and swimming humans on the…
New research indicates that baited shark diving can influence tiger shark social behavior. Scientists at the University of Miami Rosenstiel School of Marine and Atmospheric…
Selective extinction of apex predators suggests a shift to more generalist diets. A global catastrophe 66 million years ago led to the extinction of all…
A speckle-skinned whale shark swimming through the ocean. Credits: NASA’s Goddard Space Flight Center with footage from Alexpunker via Motion Array and Tom Cook. While…
96% of shark movies overtly portray sharks as a threat to humans. Undeniably the shark movie to end all shark movies, the 1975 blockbuster, Jaws,…
A tiger shark (Galeocerdo cuvier) swimming at the surface with a biologging package attached to dorsal fin. This package records temperature, swimming speed, depth, body…
Spikey, ridged scales reduce drag in swift-swimming sharks, while thicker, rounder scales offer protection from abrasion. The three-pronged scale on top may serve a defensive…