- Saw shark | Description Facts | Britannica
Saw shark, any of about nine species of long-snouted marine sharks in the order Pristiophoriformes They are characterized by a long, slender, sawlike snout equipped with sharp, toothlike projections on each edge Saw sharks are found in the western North Atlantic, southwestern Indian, and western Pacific oceans
- 18 years on, how are sharks faring in French Polynesia’s . . .
The data included the number and species of sharks observed per dive, the locations and environmental parameters, such as temperature and current direction, and whether sharks were being offered
- The Magnitude of Global Marine Species Diversity
Molecular methods may add tens of thousands of cryptic species Thus, there may be 0 7–1 0 million marine species Past rates of description of new species indicate there may be 0 5 ± 0 2 million marine species On average 37% (median 31%) of species in over 100 recent field studies around the world might be new to science
- Shark Planet | EarthDate
Modern sharks, with flexible jaws that enable them to eat prey larger than themselves, evolved about 200 million years ago, in the Jurassic Period You could say that Earth is the shark planet Sharks are the most enduring jawed vertebrates on the planet If you visited Earth at any time in the past 400 million years, you would have found sharks
- Great White Sharks | Species | WWF - World Wildlife Fund
The great white shark is the world's largest known predatory fish It has 300 teeth, yet does not chew its food Sharks rip their prey into mouth-sized pieces which are swallowed whole The shark’s heavy, torpedo-shaped body allows it to cruise efficiently for long periods of time, and then
- Sharks - Shedd Aquarium
It is estimated that around 100 million sharks are killed in commercial fisheries every year To help sharks, Shedd’s field scientists are conducting research in the Caribbean By monitoring shark populations and patterns, we can better understand the impact of sanctuaries — and work with global partners to build better plans to protect sharks
- Top Ten Thresher Shark Facts - Original Diving
Within the thresher shark family (Alopiidae), there are three recognized species: the common thresher, the bigeye thresher and the pelagic thresher While each species shares the same iconic long tail, they have slight variations in size and habitat Take the common thresher shark, which is the largest of the three species and can grow up to 19
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