Watch the cell transplant experiments in zebrafish that suggest certain embryonic cells rely on intrinsic directional cues for collective migration.
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Bamboo sharks still developing in their egg cases respond to a predator presence by ceasing movement and even breathing.
Mouse mothers emit ultrasound vocalizations and odor cues to stimulate otherwise uninterested fathers to provide parental care to their pups.
A putative new species of spider found in the Peruvian Amazon uses forest debris to weave sculptures that resemble a giant spider into its web.
The science images and videos that captured our attention in 2012
Two species of songbirds pack their nests with scavenged cigarette butts that repel irksome parasites.
A type of scallop expels water and waste through a sort of cough that could reveal clues about water quality.
A controversial primate researcher is back at work after being cleared of endangering bonobos under her care, but critics are demanding an external enquiry.
Borrowing techniques from nail and hair salons, researchers have devised a method to tag small, previously untrackable sea turtles.
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