Elephantine Gestation
Given the huge investment in their offspring, expectant mothers seemingly regulate hormone production, shrinking and backing off hormonal secretion, until their bodies detect that embryo implantation has occurred.
Heavy Metal Rock
A new study reveals that small, rocky Earth-like planets can develop in orbit around stars that vary widely in heavy element content.
Trapped in a Relationship
47-million-year-old-site in Germany finds first vertebrate fossils to directly document mating behavior.
Tick Tactic
Why the incidence of Lyme disease in North America has grown enormously and spread geographically during the past decade.
Serenading Cichlids
The overlooked role of sound as a matchmaking tool.
Gait Way
Using only its two forelimbs to propel itself on land, Ichthyostega may represent how first limbed animals transitioned from swimming like a fish to walking.
Bee Keepers
In windy conditions, bees choose flowers with conical-shaped cells on their petals in order to stay anchored while collecting nectar.
Decline and Fall of the Dinosaur Empire
New research suggests some groups of dinosaurs were already in decline before an asteroid hit Earth and eliminated most.
Killer Instinct
After deposited as eggs in the nests of other bird species, greater honeyguide hatchlings attack the nestlings of their hosts.
Air Drop
Raindrop pockmarks may provide clue to the density of Earth's atmosphere 2.7 billion years ago when the Sun was 30 percent dimmer than today.
Recent Stories
