Each year, the discovery of new shark species underlines how little we know about ocean biodiversity. In a recent report conducted by Sibert and Rubin, they reported an unexpected finding: a large-scale extinction of sharks in the pelagic ocean, the largest ecosystem on Earth, about 19 million...
What's the biggest animal ever to exist on Earth? How do fish rise and sink in the water? How the Georgia Aquarium Works How Walruses Work How Sharks Work How Narwhals Work More Great Links Discovery Channel Shark Guide American Cetacean Society The International Whaling Commission Marine Mamma...
题目 A new rule has been passed that will protect more than 50 of the world's shark species,many of which are endangered.The rule was signed by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES),which manages how people deal in...
However, there are many species of sharks, and not every shark follows the same pattern. Circumstances can also change the pattern of attack. Shark attacks in deep sea water are usually not hit-and-run attacks. In these cases, where the victims are often the survivors of sinking ships or ...
Many whale species are staggeringly enormous. The blue whale, for example, can grow to 100 feet (30 m) long, about the height of a 10-story building, and can weigh as much as 150 tons (300,000 lb or 136077.7 kg). Its heart alone is the size of a small car, and there's ...
For the conservation of sharks, however, the establishment of protected areas alone is insufficient because many shark species range well beyond them. Threats to sharks from the global fin trade have to be addressed at the domestic and international policy level: priority actions for Madagascar inclu...
Each year, the discovery of new shark species underlines how little we know about ocean biodiversity. In a recent report conducted by Sibert and Rubin, they reported an unexpected finding: a large-scale extinction of sharks in the pelagic ocean, the largest ecosystem on Earth, about 19 million...
Sharks don’t sink and they are actually quite buoyant despite the size of some species. They would sink like a rock if it wasn’t for a few cool features.Shark Week is coming soon!So we are taking a closer look at these amazing creatures of the ocean world. Let’s start with a qu...
A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of the shark species. The team looked at the retinal cells of 17...
There are over 30,000 fish species on the planet, ranging from tiny nano species to the majestic 60-foot whale shark1. Their lifespans seem to vary as much as their size and appearance, with some species surviving just a few months and others living for centuries! Check our video above ...