TUCSON, Ariz. — Don Swann and his other biologist colleagues at Saguaro National Park are regularly bombarded with questions about the majestic cactus – and given their workplace, they're ...

Arizona is home to more than three dozen national parks, sites and monuments. These 10 easy to moderate hikes show off the ...

In response to Center for Biological Diversity petitions, the California Department of Fish and Wildlife this week recommended that the state’s wildlife commission review whether to protect two ...

“By definition, invasive species are harmful in some regard,” says Jacob Barney, a professor of invasive plant ecology at ...

As gardeners we value and enjoy plants. We start them, we nurture them, we protect them and hope they thrive. They are integral members of our lives and central to ...

“Even safe succulents can cause mild stomach upset if a pet eats a large amount,” warns veterinarian Dr. Kathryn Dench, chief ...

California Academy of Sciences researchers and collaborators described 72 new-to-science species in 2025, including a bird, fish, plants, sea slugs, and insects found across six continents, from ocean ...

Cacti species are plants that are well adapted to growing in arid and semiarid regions where the main problem is water availability. Cacti have developed a series of adaptations to cope with water ...