Tag Archives: predators

The coywolves of Albemarle County: A new species that calls the area home

… freshly cut hay field in front of them, followed by a chorus of yips and more howling. Mike Hummell watches and listens. He zips up his jacket against the cold. “You want to hunt that?” he asks his hunting partner, Marshall Koontz. Hummell and Koontz are specialist hunters who respond to calls from concerned residents about predators preying on their flocks of sheep, herds of cows, etc. Working pro bono last week, they had received a call from a farmer concerned about a top-level predator …

Predator Defenses Backfired: Poisonous Frogs Face Higher Risk Of Extinction, Researchers Say 

… diversification — a combination of both speciation and extinction rates — which the species was trying to avoid by using predatory defenses in the first place, according to a news release. On the other hand, researchers found that amphibians that changed the color of their skin to hide or those that mimicked their predators to confuse them were using much safer methods of self-defense. The animals that used these techniques were able to both increase and expand (sometimes called …

Megalodon shark tooth discovered in Croatia

… megalodon. The tooth is currently being held at the museum and will probably become part of a future exhibition. Sharks are cartilaginous fish, meaning they lack a bony skeleton. This means their teeth and just a few vertebrae normally fossilize. Megalodons lived between 16 and 2.6 million years ago during the Cenozoic Era and are considered to be the largest and most powerful predators in vertebrate history. They could grow up to 60ft in length, with juveniles born at around the same size as …

Rare ‘Living Fossil’ Nautilus Spotted For The First Time In 30 Years

… colleague Bruce Saunders of Bryn Mawr College spotted it again in 1986. But it hadn’t been seen until recently. These creatures tend to stay deep under the water because they don’t like warm water. They come to the surface only to feed at night, when surface waters are cool. The nautilus has a “spiral staircase” shell, which grows a slimy material. Peter Ward told NBC News that the slimy covering may prevent predators from getting a grip of the animal. Last month, Ward …