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Origin of claws seen in 390-million-year-old fossil
A missing link in the evolution of the front claw of living scorpions and horseshoe crabs was identified with the discovery of a 390 million-year-old fossil by researchers at Yale and the University of Bonn, Germany. view more (2009-02-06)
Conquest of land began in shark genome
When the first four-legged animals sprouted fingers and toes, they took an ancient genetic recipe and simply extended the cooking time, say University of Florida scientists writing in Wednesday's issue of the journal PLoS ONE. view more (2007-08-15)
Creeping crinoids! Sea lilies crawl to escape predators, new video shows
With their long stalks and feathery arms, marine animals known as sea lilies look a lot like their garden-variety namesakes. view more (2005-10-17)
Details of Evolutionary Transition from Fish to Land Animals Revealed
New research has provided the first detailed look at the internal head skeleton of Tiktaalik roseae, the 375-million-year-old fossil animal that represents an important intermediate step in the evolutionary transition from fish to animals that walked on land. view more (2008-10-16)
Mutations in gene linked to ciliopathies
An international team of scientists, led by researchers at the University of California, San Diego School of Medicine, have discovered a connection between mutations in the INPP5E gene and ciliopathies. view more (2009-08-10)
Synchronized swimming of algae
Using high-speed cinematography, scientists at Cambridge University have discovered that individual algal cells can regulate the beating of their flagella in and out of synchrony in a manner that controls their swimming trajectories. view more (2009-07-24)
CT scan reveals ancient long-necked gliding reptile
The fossilized bones of a previously unknown, 220 million-year-old long-necked, gliding reptile may remain forever embedded in stone, but thanks to an industrial-size CT scanner at Penn State's Center for Quantitative Imaging, the bone structure and behavior of these small creatures are now known. view more (2007-06-13)
How Candida albicans transforms from its normally benign form into life-threatening form
Researchers at the Agency for Science, Technology and Research's (A*STAR) Institute of Molecular and Cell Biology (IMCB) have discovered new molecular mechanisms that provide a more detailed understanding of how the normally benign Dr. Jekyll-like fungus known as Candida albicans transforms into a serious and often life-threatening Mr. Hyde-like... view more... (2007-10-05)
New species of ghostshark from California and Baja California
New species are not just discovered in exotic locales-even places as urban as California still yield discoveries of new plants and animals. view more (2009-09-22)
Tiny 'housekeeper' crabs help prevent coral death in South Pacific
Tiny crabs that live in South Pacific coral help to prevent the coral from dying by providing regular cleaning "services" that may be critical to the life of coral reefs around the world, according to scientists from the University of California, Santa Barbara. view more (2006-10-24)
Stirred, not shaken: Bio-inspired cilia mix medical reagents at small scales
The equipment used for biomedical research is shrinking, but the physical properties of the fluids under investigation are not changing. view more (2009-07-01)
Algae's Protein "Tails" Create Motion — and Aid Munching
When single-celled organisms such as sperm crack their whip-like appendages called flagella, the beating sets them in motion. But in certain colonies of green algae, flagella also boost nutrient uptake, according to surprising new research. view more (2006-05-30)
Key to zebrafish heart regeneration uncovered
When a portion of a zebrafish's heart is removed, the dynamic interplay between a mass of stem cells that forms in the wound and the protective cell layer that covers the wound spurs the regeneration of functional new heart tissue. view more (2006-11-03)
Scary ancient spiders revealed in 3-D models, thanks to new imaging technique
Early relatives of spiders that lived around 300 million years ago are revealed in new three-dimensional models, in research published today in the journal Biology Letters. view more (2009-08-05)
How does a zebrafish grow a new tail?
If a zebrafish loses a chunk of its tail fin, it'll grow back within a week. Like lizards, newts, and frogs, a zebrafish can replace surprisingly complex body parts. A tail fin, for example, has many different types of cells and is a very intricate structure. It is the fish version of an arm or leg. view more (2006-12-27)
UF scientists discover evolutionary origin of fins, limbs
Evolutionarily speaking, the genetic instructions used to construct and position our limbs were being perfected more than half a billion years ago in fishes, not along the sides of the body where the fins that preceded human arms and legs sprouted, but at the midline that runs along the backbone and belly. view more (2006-07-27)
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