A team of palaeontologists have discovered what they believe is the world's oldest animal sperm, frozen in tree resin 100 million years ago inside a tiny crustacean in Myanmar.
The U.S. satellite was missing for 50 years.
Male and female whale sharks - filter-feeding marine behemoths - grow at different rates, with females doing so more slowly but getting much larger than the guys, according to research that offers deeper insight into the biology of Earth's largest fish. Researchers said on Wednesday they had tracked the growth of 54 whale sharks over a 10-year period in the vast Ningaloo Reef off Australia's west coast, where hundreds of these slow-swimming endangered fish migrate annually. Whale sharks of both sexes were found to have their fastest growth as juveniles, about 8-12 inches (20-30 cm) annually.
For Grant Saltz, who runs a barbecue restaurant in Mobile, Alabama, what struck him about Hurricane Sally was its steady, deliberate pace, after the storm rumbled into the U.S. Gulf Coast on Wednesday as a powerful Category 2 hurricane. "It’s so slow, this one," said Saltz, 38, while clearing away tree branches during a pause in the rains. Sally is not the most powerful storm to batter the U.S. Gulf Coast in recent memory, but its glacial pace is becoming a regular feature of the deadly storms, which many scientists attribute to climate change.
NASA is considering approving by next April up to two planetary science missions from four proposals under review, including one to Venus that scientists involved in the project said could help determine whether or not that planet harbors life. The U.S. space agency in February shortlisted four proposed missions that are now being reviewed by a NASA panel, two of which would involve robotic probes to Venus. One of those, called DAVINCI+, would send a probe into the Venusian atmosphere.
“The SAT is emblematic of higher education’s failure to keep up with the times...Just the stuff that systemic racism thrives on.”
“These tests create unnecessary stress for young people already dealing with mental health challenges.”
“Dropping the SAT requirement makes it harder for colleges to compare applicants against a common standard.”
“The best predictor of college success overall is a simple one: high school grades.”
“What matters more is a broader push to help minority students get better educations.”