The redwood species contains the largest and tallest trees in the world. Sequoioideae (redwoods) is a subfamily of coniferous trees within the family Cupressaceae. and is the most common tree in ...

Ancient trees—those that are remarkably old for their species—are declining worldwide, raising concerns about the loss of the ecological and evolutionary history they represent. Their exceptional ...

At the U.S.-Mexico border wall in August, a yellow-billed cuckoo sat perched in a giant cottonwood tree on the Arizona side as bulldozers and activists faced off below. This slender, elusive species ...

Secrets about how giant trees grew in reverse can be found in fossil imprints of their roots. Micro-CT scanning shows that the roots were growing tip-to-tail like shoots. Stigmaria (meaning "little ...

Taiwan’s steep, remote mountains have sheltered extraordinary forests containing hundreds of giant Taiwania firs. After years of difficult expeditions, LiDAR mapping, and citizen-science detective ...