Is de-extinction a real possibility?
Mexico's unique salamander, the axolotl, could be extinct in the wild in five to 10 years according to scientists. A revered symbol of central Mexico, the axolotl is the victim of pollution and introduced fish species and now a census is underway to see exactly how many remain in their native habitat.
Grass is way more important than what grows in the front yard. It is breakfast, lunch and dinner: rice, corn, wheat for us as well as food for our cows. As this video explains, grass is the basis for human civilization—despite our ungrateful determination to cut it down. A Nexus Video production for Scientific American.
How to count seabirds on islands using sound
Photos from Australia's controversial shark extermination show that released tiger sharks are also dying—both from the stress of capture and improper handling