Long-term analysis shows GM cotton no match for insects in India

Genetically modified Bt cotton is the most widely planted cotton crop in India by acreage, and it is hugely controversial. Supporters long touted increased yields and reduced pesticides to justify its pickup. But that argument does not hold up under the first long-term study of Bt cotton impacts in India. The analysis is co-authored by a Washington University in St. Louis anthropologist in the journal Nature Plants.

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Monogamous Female Sea Turtles? Yes, Thanks to Sperm Storage

Female sea turtles mate multiply to ensure fertilization. A study of nesting loggerhead female sea turtles in southwestern Florida used genotyping to uncover how many fathers were represented in their nests. Surprisingly, scientists found that 75 percent of the female sea turtles had mated singly. No male was represented in more than one female’s clutches. Findings provide insights into the relative numbers of males present in the breeding population, which are hard to get because males never come ashore.

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