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Categories: Offbeat: Plants and Animals, Space: Cosmology
Published Hummingbirds' unique sideways flutter gets them through small apertures
(via sciencedaily.com) Original source Hummingbirds are highly maneuverable fliers, flitting forward and backward as they home in on flowers. But in the dense foliage many inhabit, they often encounter gaps that are too narrow for their wingspan. Since they can't bend their wings in flight, how do they get through? Researchers used high-speed cameras to capture their movements, discovering two unique strategies: they sidle through while fluttering, or fold their wings in a tuck and glide.
Published Found at last: Bizarre, egg-laying mammal finally rediscovered after 60 years
(via sciencedaily.com) Original source A long-beaked echidna named after Sir David Attenborough and last seen by scientists in 1961 has been photographed for the first time in an Indonesian tropical forest. An international team of researchers worked with local communities to deploy over 80 camera traps to film the elusive animal. Besides rediscovering the echidna, the team uncovered a wealth of species completely new to science, including beetles, spiders, and a remarkable tree-dwelling shrimp.
Published Milky Way-like galaxy found in the early universe
(via sciencedaily.com) Original source Astronomers have discovered the most distant barred spiral galaxy, similar to the Milky Way, that has been observed to date.
Published Barnacle bends shape to fend off warm-water sea snails on the move
(via sciencedaily.com) Original source Some barnacles are 'morphing' to protect themselves from predatory warm-water sea snails, which are expanding into their territory due to climate change.
Published Palaeo-CSI: Mosasaurs were picky eaters
(via sciencedaily.com) Original source Mosasaurs, those large marine reptiles from the long-gone Cretaceous world, were quite picky in their choice of diet. Researchers came to this conclusion after studying the wear marks on mosasaur teeth.
Published First live birth of a chimeric monkey using embryonic stem cell lines
(via sciencedaily.com) Original source A team of researchers has reported for the first time the live birth of a monkey that contains a high proportion of cells derived from a monkey stem cell line. This 'chimeric' monkey is composed of cells that originate from two genetically distinct embryos of the same species of monkey. This has previously been demonstrated in rats and mice but, until now, has not been possible in other species, including non-human primates.
Published How animals get their stripes and spots
(via sciencedaily.com) Original source New research helps explain how sharp patterns form on zebras, leopards, tropical fish and other creatures. Their findings could inform the development of new high-tech materials and drugs.
Published Head lice evolution mirrors human migration and colonization in the Americas
(via sciencedaily.com) Original source A new analysis of lice genetic diversity suggests that lice came to the Americas twice -- once during the first wave of human migration across the Bering Strait, and again during European colonization.
Published Animals like crickets use the ground to amplify calls
(via sciencedaily.com) Original source When animals 'sing' sitting on the ground -- such as when crickets chirp -- their volume and reach increase dramatically, by as much as ten-fold. This result contradicts long-held beliefs in the field of animal communication, which presume the ground is a hindrance to sound transmission.
Published Yeast with an over half synthetic genome is created in the lab
(via sciencedaily.com) Original source Researchers have combined over seven synthetic chromosomes that were made in the lab into a single yeast cell, resulting in a strain with more than 50% synthetic DNA that survives and replicates similarly to wild yeast strains. A global consortium is working to develop the first synthetic eukaryote genome from scratch. The team has now synthesized and debugged all sixteen yeast chromosomes.
Published 450-million-year-old organism finds new life in Softbotics
(via sciencedaily.com) Original source Researchers have used fossil evidence to engineer a soft robotic replica of pleurocystitids, a marine organism that existed nearly 450 million years ago and is believed to be one of the first echinoderms capable of movement using a muscular stem.
Published The fascinating relationship between mice and a plant that flowers once a century in terms of seed dispersal
(via sciencedaily.com) Original source Researchers have discovered several factors that affect field mouse behavior using seeds from dwarf bamboo plants, a plant that flowers once in a century. Their findings not only suggest the previously underappreciated role of mice in the forest ecosystem, but also show that they store small sasa seeds for later use. These challenge a previously held model of mouse behavior.
Published Two fins are better than one: Fish synchronize tail fins to save energy
(via sciencedaily.com) Original source They say two heads are better than one. But in the world of fish, it appears two fins are better than one. Researchers have produced a theoretical model that demonstrates the underlying mechanisms behind how fish will synchronize their fin movements to ride each other's vortices, thereby saving energy.
Published Rats have an imagination, new research suggests
(via sciencedaily.com) Original source Researchers have developed a novel system to probe a rat's thoughts, finding that animals can control their brain activity to imagine remote locations.
Published Chimpanzees use hilltops to conduct reconnaissance on rival groups, study finds
(via sciencedaily.com) Original source Research on neighboring chimpanzee communities in the forests of West Africa suggests a warfare tactic not previously seen beyond humans is regularly used by our closest evolutionary relatives.
Published Researchers find gravitational lensing has significant effect on cosmic birefringence
(via sciencedaily.com) Original source Future missions will be able to find signatures of violating the parity-symmetry in the cosmic microwave background polarization more accurately after a pair of researchers has managed to take into account the gravitational lensing effect, reports a new study.
Published Researchers engineer colloidal quasicrystals using DNA-modified building blocks
(via sciencedaily.com) Original source A new study unveils a novel methodology to engineer colloidal quasicrystals using DNA-modified building blocks. The implications of this breakthrough are far-reaching, offering a potential blueprint for the controlled synthesis of other complex structures previously considered beyond reach.
Published Giant dinosaur carcasses might have been important food sources for Jurassic predators
(via sciencedaily.com) Original source Carnivorous dinosaurs might have evolved to take advantage of giant carcasses, according to a new study.
Published Where is a sea star's head? Maybe just about everywhere
(via sciencedaily.com) Original source A new study that combines genetic and molecular techniques helps solve the riddle of sea star (commonly called starfish) body plans, and how sea stars start life with bilateral body symmetry -- just like humans -- but grow up to be adults with fivefold 'pentaradial' symmetry.
Published How sunflowers see the sun
(via sciencedaily.com) Original source Sunflowers famously turn their faces to follow the sun as it crosses the sky. But how do sunflowers 'see' the sun to follow it? Plant biologists show that they use a different, novel mechanism from that previously thought.