
Fish Pictures & Facts - National Geographic
Whale sharks, the largest fish, give birth to live young and eat only tiny fish, squid, and plankton. Some species, such as the weedy sea dragon, are so bizarre they seem almost unreal.
Facts on Fish - National Geographic Kids
Some are being fished in the wild so much that they cannot reproduce enough to survive. Others are being farmed in ways that are not environmentally friendly. These fish include red snapper, Atlantic salmon, bluefin tuna, and king crab.
What is a fish kill, and why are they happening more often?
2023年7月12日 · Fish are dying of suffocation in oceans and rivers. What’s causing it? The mass die-offs, which can occur naturally, are becoming more common around the world—and scientists say humans are to ...
How the world’s deepest fish survives bone-crushing pressure
2019年4月15日 · In the Mariana Trench—7,000 meters below the ocean’s surface—these fish makes a living in total darkness and at crushing pressures that can reach 1,000 times more than at sea level.
How overfishing threatens the world's oceans—and why it could …
2022年2月7日 · Some fish consumed in the United States, including Atlantic cod, herring, and California's sardines, were also harvested to the brink of extinction by the mid-1900s.
Mexican Axolotl - National Geographic Kids
Axolotls feast on a menu of mollusks, worms, insect larvae, crustaceans, and some fish. Mexican axolotl (pronounced ACK-suh-LAH-tuhl) salamanders are amphibians that spend their whole lives underwater.
Freshwater fish facts and information - National Geographic
There are more than 800 known freshwater fish species in North America alone. Worldwide, the number is over 10,000 species. Some species of freshwater fish, such as salmon and trout, are called ...
Which Fish Can Live Out of Water? - National Geographic
2015年12月5日 · For Saturday’s Weird Animal Question of the Week, Ving Salcedo asked what type of fish can live without water for a small period of time. It turns out quite a few have a fin in both worlds.
How bioluminescence works in nature - National Geographic
2019年5月2日 · At least 1,500 species of fish are known to be bioluminescent, including sharks and dragonfish—and scientists regularly discover new ones.
Climate Change May Shrink the World’s Fish - National Geographic
2017年8月21日 · Warming temperatures and loss of oxygen in the sea will shrink hundreds of fish species—from tunas and groupers to salmon, thresher sharks, haddock and cod—even more than previously thought, a ...