Monday, October 29, 2012
Neither slime nor mold, these single-celled organisms use a kind of external physical memory when navigating, much like a trail of breadcrumbs. Read about some creepy experiments.
Monday, October 22, 2012
Monday, October 15, 2012
Tuesday, June 26, 2012
Tuesday, June 19, 2012
Photograph by Holger Hollemann, European Pressphoto AgencyMale marmosets in South America not only carry, feed, and groom their twin babies, but also may act as "midwives" during birth, grooming and licking the newborns.
Marmoset dads may be so involved in parenting because of the high cost of birth for the mother: While in the womb, the babies eventually make up 25% of her body weight—equal to a 120-pound woman giving birth to a 30-pound infant.
Monday, June 18, 2012
Photograph courtesy NIWA
Female black dragonfish—such as this newfound specimen of the Idiacanthus genus—are "fierce predators" of small fish. But "interestingly, male dragonfish lack teeth and a functional gut, and are thought to live only long enough to breed," biologist Malcolm Clark said.