Overpopulation

Nudibranchs (seaslugs) are favorite with amateur divers. The advent of SCUBA diving and digital photography has revolutionized how we document and describe these soft-bodied, shell-less gastropods.

Species Explosion

What happens when you mix evolution with climate change?

Jokim Githuka, 3, displays a portrait of his dead father, Robert Njoya, in a Kenyan maize field. Other sons stand by his grave with Njoya's widow, Serah. The trial of his undisputed killer, Thomas Cholmondely, has electrified this former British colony.

Death in Happy Valley

A son of the colonial aristocracy goes on trial for killing a poacher in Kenya, where an exploding human population is heightening tensions

A gypsy moth larva crawls along a leaf.

Unwelcome Guests

A new strategy to curb the spread of gypsy moths

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Oh Deer!

Contraception shows promise, but other measures may be needed to lessen the toll that the deer boom is having on forests and suburbs

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Sleepless in Hawaii

Insomniac islanders are hopping mad over a tiny frog from that threatens their fragile ecosystem

Over the past 20 years, a significant decline in the smallmouth bass population of a much cleaner Lake Ontario has coincided with an explosion in cormorant numbers.

Shoot-out at Little Galloo

Angry fishermen accuse the cormorant of ruining their livelihood and have taken the law into their own hands. But is the cormorant to blame?

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