'Stealth flippers' helped this extinct mega-predator stalk its prey
The extinct marine mega-predator Temnodontosaurus had specialized adaptations to stealthily hunt its prey, revealed through an analysis of a fossil flipper.
The US military wants to help its pilots and other warfighters sleep better - but also stay awake when it matters most
Lack of sleep can have disastrous consequences for the DoD. A report found that lack of sleep contributed to military safety mishaps and multiple deaths.
Researchers at CPAP.com analyzed 23 different NYC train lines based on air conditioning, seating, on-time operation, and passenger satisfaction, declaring the Q train the best for rest.