Zebra and quagga mussels entered the Great Lakes in large ships’ ballast water. Now, local boaters and anglers are spreading them into the southern and western US.
A study showed that an endangered population of beluga whales in the St. Lawrence River had one of the world’s highest concentrations of the flame retardant, PBDE, in their blubber.
(Shutterstock)
Thomas Uboldi, Université du Québec à Rimouski (UQAR)
The ocean is often considered a silent universe. But many recent studies highlight the importance of the soundscape for many marine species, both large and small.
Marabou storks perch on a tree at sunrise in Serengeti National Park, Tanzania.
Sergio Pitamitz /VWPics/Universal Images Group via Getty Images
As a major conference on the global biodiversity crisis opens in Montreal, a conservation biologist explains how ideas about protecting nature have evolved over the past 40 years.
Thoreau thought commerce destroyed moral freedom. A true “economy”, he argued, would lead to ecological and social flourishing for humans and for all beings.
Decomposers at work: Shelf fungi feeding on a rotting log.
Craig Joiner/Loop Images/Universal Images Group via Getty Images
Fungi underpin life on Earth, but are far less well catalogued and understood than animals and plants. Three scientists call for including fungi in conservation strategies and environmental laws.
Don’t call them tentacles: An octopus has eight arms.
TheSP4N1SH/iStock via Getty Images Plus
With nine brains, blue blood and a talent for camouflage, the octopus is one of the most fascinating creatures in the sea.
Changes in climate affect the timings of various points in the life cycle of plants, including when flowers bloom in spring and when leaves wither in autumn.
(Shutterstock)
Sea turtles of Aldabra were almost hunted to extinction. But thanks to years of protection the much-loved animals are now thriving again - and so is the iconic giant tortoise.
Frowin Becker, Te Herenga Waka — Victoria University of Wellington
There is plenty of work to do to ensure that other species, geographical areas and ecosystems across Africa are better understood through bioacoustics.
Forest thinning and prescribed burns leave less fuel to burn.
Escaflowne via Getty Images
Ryan E. Tompkins, University of California, Division of Agriculture and Natural Resources e Susan Kocher, University of California, Division of Agriculture and Natural Resources
After another devastating wildfire year in the West, the Biden administration has a plan to ramp up forest thinning and prescribed burns. Two foresters explain why these projects are so important.
Fencing protects New Zealand sea lions that have migrated inland from road traffic.
Janet Ledingham
It’s usually good news when a once-scarce species starts to recover – unless it starts getting in humans’ way. An ecologist explains how science can help predict unwelcome encounters.
Matthew Flinders Professor of Global Ecology and Models Theme Leader for the ARC Centre of Excellence for Australian Biodiversity and Heritage, Flinders University