Migrating birds map routes to prevent interbreeding?

Genes may lead migrating birds to take particular routes to their destination that could prevent interbreeding, suggests a study that tracked hybrids between songbird species.

Diesel cars beat hybrids in fuel efficiency

Some diesel cars are beating the over-hyped hybrids in terms of fuel efficiency.

Toyota to start selling plug-in hybrids in 2011

Toyota showed its new plug-in hybrid today, available for leasing this month in Japan, the US and Europe, and promised the green vehicle for sale to regular consumers in 2011 at an "affordable" price.