Archive for the ‘Reproduction and heredity’ Category

Mating Songs in the Ocean - Thursday, November 11th, 2004

During Hurricane Charley, ocean fish sing their mating songs louder and longer.

Cultural Evolution, Animal Style - Thursday, July 22nd, 2004

Animals watch others and change their behavior to match.

Sex Strategies of Cuttlefish: Delusion Gets the Girl! - Thursday, July 8th, 2004

Giant Australian cuttlefish cross-dresses to mate. Small males temporarily look like females, mating right under the noses of the big boys!

Cicada Cascade - Thursday, May 27th, 2004

Like a chamberful of pork-barreling legislators, cicadas are on the wing in Washington, D.C. Voracious. Unstoppable. A force of nature: 17-year cicadas are back!

Sexual Deception, Orchid Style - Thursday, October 16th, 2003

Flower power: Orchid makes a chemical that attracts wasps by mimicking female pheromone.

Vaccines You Can Eat - Thursday, November 21st, 2002

Edible vaccines offer cheap, easy solution to halt disease in developing countries, but roadblocks remain. Is this an acceptable type of gene-modified food?

Birdsong and Motivation - Thursday, September 26th, 2002

Sexual motivation for birdsong involves hormones, the medial preoptic brain area and environment in European starlings.

Plant Breeding: Hope for the World’s Hungry? - Thursday, September 19th, 2002

Genetic engineering may not be the best way to make more food; plant breeding remains vital. As grain production flattens, should we be supporting more plant breeders?

Bird Mating Call - Thursday, May 2nd, 2002

Song competition among chickadees sets females’ reproductive strategy. Guys: Time to learn to sing?

Genome Project: What Have We Learned? - Thursday, February 21st, 2002

It’s gibberish to us, but what does the Human Genome Project mean for biology?

Cool Science Images

SciMax Theater

Virtual Science!

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