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Categories: Biology: Zoology, Ecology: Animals
Published How do you know where a fish goes?
(via sciencedaily.com) Original source An acoustic transmitter -- or tag -- emits unique signals or 'pings' when scientists want to study the long-distance movement of marine animals. However, this method has limitations. Using a movement model, researchers reconstructed animal tracks and leveraged an iterative process to measure the accuracy and precision of these reconstructions from acoustic telemetry data. Results demonstrate how researchers can apply these techniques and measure the accuracy and precision of the methods to their study sites.
Published Seeking social proximity improves flight routes among pigeons
(via sciencedaily.com) Original source A new study looked at the social influences on pigeon flight routes. Comparing the flight patterns of pairs of pigeons to a computer model, the researcher found that flight paths are improved as younger birds learn the route from older birds and also make route improvements, leading to overall more efficient routes over generations.
Published Fish in schools have an easier time swimming in rough waters
(via sciencedaily.com) Original source Swimming through turbulent water is easier for schooling fish compared to solitary swimmers, according to a new study.
Published Tiny roundworms carve out unique parasitic niche inside pseudoscorpion's protective covering
(via sciencedaily.com) Original source In a parasitic first, a Baltic amber specimen has revealed that millions of years ago tiny worms known as nematodes were living inside of and feeding on the outer protective layer of pseudoscorpions.
Published Flapping frequency of birds, insects, bats and whales described by universal equation
(via sciencedaily.com) Original source A single universal equation can closely approximate the frequency of wingbeats and fin strokes made by birds, insects, bats and whales, despite their different body sizes and wing shapes, researchers report in a new study.
Published Fishy mystery of marine reptile solved
(via sciencedaily.com) Original source The identity of a prehistoric marine reptile has finally been revealed after experts discovered that some of its remains actually belonged to fish.
Published Blood sausages and yak milk: Bronze Age cuisine of Mongolian nomads unveiled
(via sciencedaily.com) Original source Bronze cauldrons were used by the inhabitants of the Mongolian steppe around 2,700 years ago to process animal blood and milk. This is shown by a protein analysis of archaeological finds from this period.
Published 'Open gates' in warming Arctic are expanding salmon range
(via sciencedaily.com) Original source New research has connected warming ocean temperatures to higher Pacific salmon abundance in the Canadian Arctic, an indicator that climate change is creating new corridors for the fish to expand their range. Salmon haven't historically been seen in large numbers in the Arctic Ocean and its watersheds, but in recent years incidental catches by subsistence fishermen have occasionally surged. Researchers working together with communities in the western Canadian Arctic, connected those salmon booms with a sequence of warm, ice-free conditions in the Arctic Ocean north of Alaska.
Published Early summer fishing can have an evolutionary impact, resulting in smaller salmon
(via sciencedaily.com) Original source A new genetic study found that heavy fishing in the early part of the fishing season may result in younger and smaller Atlantic salmon. This information can help to conserve large fish essential for the diversity and viability of salmon populations.
Published Exercising during pregnancy normalizes eating behaviors in offspring from obese mice
(via sciencedaily.com) Original source Maternal obesity impacts the eating behaviors of offspring via long-term overexpression of the microRNA miR-505-5p, according to a new study.
Published Combining pest treatments may be key to helping honey bees survive the winter
(via sciencedaily.com) Original source Winters can be tough on managed honey bee colonies, with beekeepers in the United States reporting that one-third of their colonies die each winter. A new study has found that using not one but multiple pest treatments may help bees make it to spring.
Published Rocky shores of Pacific Northwest show low resilience to changes in climate
(via sciencedaily.com) Original source A 15-year period ending in 2020 that included a marine heat wave and a sea star wasting disease epidemic saw major changes in the groups of organisms that live along the rocky shores of the Pacific Northwest.
Published Using AI to decode dog vocalizations
(via sciencedaily.com) Original source Have you ever wished you could understand what your dog is trying to say to you? Researchers are exploring the possibilities of AI, developing tools that can identify whether a dog's bark conveys playfulness or aggression.
Published Gigantic Jurassic pterosaur fossil unearthed in Oxfordshire, UK
(via sciencedaily.com) Original source A team of palaeontologists has discovered a fossil of a gigantic flying reptile from the Jurassic period with an estimated wingspan of more than three metres -- making it one of the largest pterosaurs ever found from that era.
Published New light shed on circadian rhythms
(via sciencedaily.com) Original source Circadian clocks, which drive circadian rhythms, are entwined with many essential systems in living things including plants, fungi, insects, and even humans. Because of this, disruptions to our circadian clocks are linked to higher disease rates in humans, including certain cancers and autoimmune diseases.
Published Mapping the seafloor sediment superhighway
(via sciencedaily.com) Original source A new scientific model is giving researchers an unprecedented, global look at the activities of clams, worms, and other invertebrate animals that burrow at the bottom of the ocean.
Published The embryo assembles itself
(via sciencedaily.com) Original source Biological processes depend on puzzle pieces coming together and interacting. Under specific conditions, these interactions can create something new without external input. This is called self-organization, as seen in a school of fish or a flock of birds. Interestingly, the mammalian embryo develops similarly. Scientists now introduce a mathematical framework that analyzes self-organization from a single cell to a multicellular organism.
Published Wire snare removal in protected areas is labor-intensive but effective -- and essential to solving the Southeast Asian snaring crisis
(via sciencedaily.com) Original source Snaring -- a non-selective method of poaching using wire traps -- is widespread in tropical forests in Southeast Asia. Snaring decimates wildlife populations and has pushed many larger mammals to local or even global extinction. Eleven years of data from ranger patrols in the Thua Thien Hue and Quang Nam Saola Nature Reserves in Viet Nam show that intensive removal efforts are labour-intensive and costly but brought snaring down by almost 40 percent and therefore reduced imminent threats to wildlife. Further reductions were difficult to achieve despite continued removal efforts. Snare removal is therefore necessary but by itself not sufficient to save the threatened wildlife diversity in tropical forests, scientists conclude.
Published Captivating blue-colored ant discovered in India's remote Siang Valley
(via sciencedaily.com) Original source A new species of blue ant was discovered in Yingku village in Arunachal Pradesh, Northeastern India. It was named Paraparatrechina neela, after the word 'neela' which means blue in various Indian languages. Its unique blue coloration makes it stand out among other ant species.
Published Food drove the evolution of giraffes' long neck
(via sciencedaily.com) Original source A study explores body proportions of Masai giraffes, lending insight into why giraffes have such long necks and how this trait might have evolved.