Here's a message that's apt to get lost in the thicket of today's Arbor Day hoo-ha: Sometimes the best place for a tree is on the mulch heap. Just ask Houston Arboretum and Nature Center naturalist ...

This week, we've been examining the problem of invasive species in Southland waters. For more than 100 years, California's stocked lakes, rivers, and streams for recreational anglers. But that's ...

There's an invasion in progress and very likely, your back yard is harboring some of the "alien" life forms stirring new opposition from those who wish to preserve native flora and fauna. These ...

Part biological tank, part master engineer, the Chinese mitten crab (Eriocheir sinensis) has moved from East Asia to become one of the world’s most destructive invasive species. By riddling riverbanks ...