the marked stem cells that produced the white sectors in Figure 3 gave rise to all the different cell types that make up a leaf). Do similar mechanisms operate in plant and animal stem cells to ...

An organ is made from two or more tissues, which all work together to do a particular job, like the heart in animals or a leaf in a plant. An organ system is made of a group of organs which all ...

This is why he may not be able to accomplish them all. The Chuckwalla National Monument ... for imperiled and rare species. Fifty rare plant and animal species are native to the region, including ...

There are all sorts of fascinating things about plants that we can appreciate, often making us realize that they’re more intelligent than they seem. Sure, they don’t have brains like animals ...

A deep freeze and rare snow have brought most things to a standstill from parts of Texas to Florida, but experts say wildlife ...

More than one-third of all animals on Earth, from beetles to cows to elephants, depend on plant-based diets. Plants are a low-calorie food source, so it can be challenging for animals to consume ...

Some of the most popular houseplants can be quite dangerous for pets, so we've made a list of a handful that are perfectly ...

WASHINGTON— The Environmental Protection Agency released final biological evaluations today confirming that three widely used neonicotinoid insecticides likely harm roughly three-fourths of all ...