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.
Largetooth sawfish, facts and photos - National Geographic
The largetooth sawfish is one of five species of sawfish—rays that have chainsaw-like snouts called rostrums. This species once swam in warm waters around the world, showing up in many cultures ...
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 ...
Mexican Axolotl - National Geographic Kids
Axolotls feast on a menu of mollusks, worms, insect larvae, crustaceans, and some fish. Check out where Mexican axolotls live. National Geographic Maps. Mexican axolotl (pronounced ACK-suh-LAH-tuhl) salamanders are amphibians that spend their whole lives underwater.
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.
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.
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.
Fish - National Geographic Kids
Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.
How Fish Make Themselves Invisible—Mystery Solved - National …
2015年11月23日 · Some fish have evolved a strategy to hide in nothing but water and sunlight, a new study says.
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 ...