When the world gets warmer, what happens to bison? They go on a diet. A new study finds that grazing animals like bison and cattle will have access to less protein under climate change.
"Why warm climates would shrink grazers is still being worked out, but it appears that the soils of warm-climate grasslands supply less nitrogen to grasses and the grasses produce less protein in their leaves. Most grazers in the United States are limited by protein, which is expensive to supplement … It’s estimated that every 1.5°F increase in temperature could cost ranchers in the United States $1 billion dollars in lost income due to cattle gaining less weight.”
This tree was felled by Dutch elm disease. But some elm trees are proving to be resistant to the disease, leading scientists to experiment with a genetic “dating service” that just might help restore these majestic trees.
Cantor’s giant softshell turtle hatchlings, hatched through a conservation program along the Mekong River in Cambodia. Find out why freshwater scientist Jeff Opperman has “hope amid the dams and dangers" on the Mekong.