Scientists have discovered how the toxoplasmosis parasite may trigger the development of schizophrenia and other bipolar disorders.

If you couldn't believe your eyes when you saw the recent photo of a purported record-breaking 771-pound stingray, you may have been on to something.

Dutch researchers wanted to know whether an increased CO2 concentration exerted an influence on underwater life. They therefore examined freshwater micro-algae: small, floating and mostly unicellular algae. The experiments were performed in large tanks called limnotrons. These were aerated with ordinary air or with air containing an elevated concentration of CO2. The researchers then examined the ratio between the important elements carbon, nitrogen and phosphorous.

A new study challenges the prevailing assumption that you must pay attention to something in order to learn it. The research, published by Cell Press in the March 12th issue of the journal Neuron, demonstrates that stimulus-reward pairing can elicit visual learning in adults, even without awareness of the stimulus presentation or reward contingencies.

Purdue University researchers have determined a process that regulates activity of genes that control seed germination and seedling development.