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T. Rex More Hyena Than Lion: Tyrannosaurus Rex Was Opportunistic Feeder, Not Top Predator, Paleontologists Say
February 22, 2011 — Was T. rex really the king of the forest? A new census of dinosaurs in Montana's Hell Creek Formation shows that T. rex was far too abundant to be a top predator. Paleontologists argue that T. rex ... > full story -
Miscarriage Parasite Rare in Norwegian Dairy Herds
February 11, 2011 — Neospora caninum is a unicellular parasite that induces miscarriages in cows in large parts of the world. Researchers have charted both the occurrence of the parasite in Norway and also important ... > full story -
The Brain Knows What the Nose Smells, but How?
February 4, 2011 — Biologists have developed a new technique to trace neural pathways across the brain. They have mapped the path of odor signals as they travel to the higher centers of a mouse brain, illuminating the ... > full story -
Asian Tiger Numbers Could Triple If Large-Scale Landscapes Are Protected
January 25, 2011 — The tiger reserves of Asia could support more than 10,000 wild tigers -- three times the current number -- if they are managed as large-scale landscapes that allow for connectivity between core ... > full story -
Delving Into the Past of a Big Cat: Clouded Leopard Redefined
January 22, 2011 — Using genetic and morphological analyses, researchers have recently demonstrated that the clouded leopard (Neofelis) should not only be classified into two species, but that one of which even ... > full story -
On the Trail of a Stealthy Parasite Biologist Shows Why Some Strains of Toxoplasma Are More Dangerous Than Others
January 4, 2011 — About one-third of the human population is infected with a parasite called Toxoplasma gondii, but most of them don't know it. Though Toxoplasma causes no symptoms in most people, it can be harmful to ... > full story -
Even Healthy Cats Act Sick When Their Routine Is Disrupted
January 3, 2011 — A cat regularly vomiting hairballs or refusing to eat probably isn't being finicky or otherwise "cat-like," despite what conventional wisdom might say. There is a good chance that the cat is acting ... > full story -
Protein Helps Parasite, Toxoplasma Gondii, Survive in Host Cells
December 28, 2010 — Researchers have learned why changes in a single gene, ROP18, contribute substantially to dangerous forms of the parasite Toxoplasma gondii. The answer has likely moved science a step closer to new ... > full story -
Parasite and Bacterium Illustrate Convergent Evolution: Both Hijack Cells' 'Post Office'
December 13, 2010 — Protozoan parasite Toxoplasma gondii and pathogenic bacterium Chlamydia trachomatis exemplify convergent evolution, development of similar biological trait in unrelated lineages, according to new ... > full story -
Shoo, Fly! Catnip Oil Repels Bloodsucking Flies
December 8, 2010 — Catnip, the plant that attracts domestic cats like an irresistible force, has proven 99 percent effective in repelling the blood-sucking flies that attack horses and cows, causing $2 billion in ... > full story
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