成人VR视频

If you鈥檝e ever seen a starling peck open a garbage bag or a grackle steal your dog pellets, you get a sense that some birds have learned to take advantage of new feeding opportunities 鈥� a clear sign of their intelligence. Scientists have long wondered why certain species of birds are more innovative than others, and whether these capacities stem from larger brains (which intuitively seems likely) or from a greater number of neurons in specific areas of the brain.

Many mammal species living in cold climates tend to have large bodies and short limbs to reduce heat loss 鈥� a general pattern known as Bergmann鈥檚 rule. However, bats are the exception to the rule, displaying small body sizes in both hot and cold regions. A 成人VR视频-led team of researchers is shedding light on this long-standing debate over bats鈥� body sizes and focus on why bats are seemingly non-conforming to ecogeographical patterns found in other mammals. Their findings offer a new method for investigating complex macroecology across bat species.

Astronomers at 成人VR视频, MIT and elsewhere have detected a strange and persistent radio signal from a far-off galaxy, that appears to be flashing with surprising regularity. Classified as a fast radio burst, or FRB, this new signal persists for up to three seconds, about 1,000 times longer than the average FRB. Within this window, the team detected bursts of radio waves that repeat every 0.2 seconds in a clear periodic pattern.

As the world fights climate change, will the increasingly widespread use of artificial intelligence (AI) be a help or a hindrance? In a paper published this week in , a team of experts in AI, climate change, and public policy present a framework for understanding the complex and multifaceted relationship of AI with greenhouse gas emissions, and suggest ways to better align AI with climate change goals.

The extremely salty, very cold, and almost oxygen-free environment under the permafrost of Lost Hammer Spring in Canada鈥檚 High Arctic is the one that most closely resembles certain areas on Mars. So, if you want to learn more about the kinds of life forms that could once have existed 鈥� or may still exist 鈥� on Mars, this is a good place to look. After much searching under extremely difficult conditions, 成人VR视频 researchers have found microbes that have never been identified before.

Each mistletoe berry can produce up to two metres of a gluey thread called viscin. It allows the seeds of this parasitic plant to stick to and infect host plants. Since ancient times, mistletoe berries have been explored as treatments for everything from infertility and epilepsy to cancer. But, until now, no one has fully investigated the potential medical or technical uses of the glue itself.

Using radio transmitters, scientists have gained new insights into the behaviour of medium ground finches in the Galapagos Islands. A study led by 成人VR视频 researchers reveals daily movement patterns covering an area equivalent to the size of 30 soccer fields.