Showing 20 articles starting at article 701
< Previous 20 articles Next 20 articles >
Categories: Mathematics: General, Offbeat: Plants and Animals
Published Oldest spinosaur brains revealed
(via sciencedaily.com) Researchers have reconstructed the brains and inner ears of two British spinosaurs, helping uncover how these large predatory dinosaurs interacted with their environment.
Published Scientific AI's 'black box' is no match for 200-year-old method
(via sciencedaily.com) A new study finds that a 200-year-old technique called Fourier analysis can reveal crucial information about how the form of artificial intelligence called deep neural networks (DNN) learn to perform tasks involving complex physics. Researchers discovered the technique can directly connect what a DNN has learned to the physics of the complex system the DNN is modeling.
Published Creating 3D objects with sound
(via sciencedaily.com) Scientists have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed. These results pave the way for novel 3D cell culture techniques with applications in biomedical engineering.
Published Cockatoos know to bring along multiple tools when they fish for cashews
(via sciencedaily.com) Goffin's cockatoos have been added to the short list of non-human animals that use and transport toolsets. Researchers show that the cockatoos carry multiple tools to their worksite when the job calls for it. This behavior has only been previously reported in chimpanzees, our closest relatives.
Published 'It's me!' Fish recognizes itself in photographs, say scientists
(via sciencedaily.com) Original source Scientists have demonstrated that fish think 'it's me' when they see themselves in a picture. The researchers found that the determining factor was not the fish seeing their own body but seeing their face.
Published Scientists develop new index based on functional morphology to understand how ancestors of modern birds used their wings
(via sciencedaily.com) Scientists have compared the relationship among the strength of flight bones, body mass, and the way modern birds fly to better understand the evolution of flight in birds and extinct animals, such as the Pteranodon.
Published Whiskers help nectar-eating 'acro bats' hover like hummingbirds
(via sciencedaily.com) A new study found that nectar-feeding bats evolved extra-long whiskers unlike those of any other bat species that allow them to hover as they feed on flowers, much like hummingbirds. The researchers used high-speed cameras to capture how the forward-facing whiskers provide enhanced spatial information for fast, precise flight maneuvers.
Published Caribou have been using same Arctic calving grounds for 3,000 years
(via sciencedaily.com) Caribou have been using the same Arctic calving grounds for more than 3,000 years. Female caribou shed their antlers within days of giving birth, leaving behind a record of their annual travels across Alaska and Canada's Yukon that persists on the cold tundra for hundreds or even thousands of years. Researchers recovered antlers that have sat undisturbed on the arctic tundra since the Bronze Age.
Published New Zealand one of few island nations with potential to produce enough food in a nuclear winter, researchers say
(via sciencedaily.com) New Zealand is one of only a few island nations that could continue to produce enough food to feed its population in a nuclear winter, researchers have found.
Published Can pigeons match wits with artificial intelligence?
(via sciencedaily.com) Can a pigeon match wits with artificial intelligence? Researchers tested pigeons' learning abilities and concluded the birds employ the same basic process, called associative learning, as the most advanced AI technologies.
Published Voiceless frog discovered in Tanzania
(via sciencedaily.com) Original source Researchers discovered a new species of frog in Africa that has an unusual trait: it's completely silent. The Ukaguru spiny-throated reed frog does not croak, sing or ribbit. Found in Tanzania's Ukaguru Mountains for which it is named, Hyperolius ukaguruensis is among the few frogs around the world that do not vocalize to other frogs.
Published Human brain organoids respond to visual stimuli when transplanted into adult rats
(via sciencedaily.com) Researchers show that brain organoids -- clumps of lab-grown neurons -- can integrate with rat brains and respond to visual stimulation like flashing lights.
Published 319-million-year-old fish preserves the earliest fossilized brain of a backboned animal
(via sciencedaily.com) The CT-scanned skull of a 319-million-year-old fossilized fish, pulled from a coal mine in England more than a century ago, has revealed the oldest example of a well-preserved vertebrate brain.
Published Researchers take a step toward novel quantum simulators
(via sciencedaily.com) If scaled up successfully, the team's new system could help answer questions about certain kinds of superconductors and other unusual states of matter.
Published Fishing in synchrony brings mutual benefits for dolphins and people in Brazil, research shows
(via sciencedaily.com) By working together, dolphins and net-casting fishers in Brazil each catch more fish, a rare example of an interaction by two top predators that is beneficial to both parties, researchers have concluded following 15 years of study of the practice.
Published This groundbreaking biomaterial heals tissues from the inside out
(via sciencedaily.com) A new biomaterial that can be injected intravenously, reduces inflammation in tissue and promotes cell and tissue repair. The biomaterial was tested and proven effective in treating tissue damage caused by heart attacks in both rodent and large animal models. Researchers also provided proof of concept in a rodent model that the biomaterial could be beneficial to patients with traumatic brain injury and pulmonary arterial hypertension.
Published New ancient 'marine crocodile' discovered on UK's Jurassic Coast -- and it's one of the oldest specimens of its type ever found
(via sciencedaily.com) A new study has uncovered a new thalattosuchian -- an ancient 'sister' of modern-day crocodiles' ancestors.
Published A fairy-like robot flies by the power of wind and light
(via sciencedaily.com) The loss of pollinators, such as bees, is a huge challenge for global biodiversity and affects humanity by causing problems in food production. Researchers have now developed the first passively flying robot equipped with artificial muscle. Could this artificial fairy be utilized in pollination?
Published AI technology generates original proteins from scratch
(via sciencedaily.com) Scientists have created an AI system capable of generating artificial enzymes from scratch. In laboratory tests, some of these enzymes worked as well as those found in nature, even when their artificially generated amino acid sequences diverged significantly from any known natural protein.
Published What crocodile DNA reveals about the Ice Age
(via sciencedaily.com) What drives crocodile evolution? Is climate a major factor or changes in sea levels? Determined to find answers to these questions, researchers discovered that while changing temperatures and rainfall had little impact on the crocodiles' gene flow over the past three million years, changes to sea levels during the Ice Age had a different effect.