Showing 20 articles starting at article 881
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Categories: Biology: Zoology, Ecology: Sea Life
Published Unique voice print in parrots
(via sciencedaily.com) Original source Individual voice could help birds be recognized in a flock, no matter what they say.
Published Gut bacteria found in wild wolves may be key to improving domestic dogs' health
(via sciencedaily.com) Original source Gut microbes found in wild wolves may be the key to alleviating a debilitating gastrointestinal condition common to domestic dogs.
Published DNA from discarded whale bones suggests loss of genetic diversity due to commercial whaling
(via sciencedaily.com) Original source Commercial whaling in the 20th century decimated populations of large whales but also appears to have had a lasting impact on the genetic diversity of today’s surviving whales, new research shows.
Published Pheromones influence death feigning behavior in beetles
(via sciencedaily.com) Original source In the natural world, predators play a significant role in shaping how animals defend themselves. A previously documented tactic called 'death feigning' involves prey insects faking death when targeted by predators. However, the impact of chemical substances called pheromones on death-feigning remains largely unexplored. A team of researchers recently found out how the aggregation pheromone 4,8-dimethyldecanal affects the death-feigning behavior of the red flour beetle, Tribolium castaneum.
Published Sustainable protection of rapidly subsiding coastlines with mangroves
(via sciencedaily.com) Original source Along the Asian coast lines there are many areas where rural communities experience alarming rates of sea level rises due to land subsidence up to 10 cm per year. This causes tremendous challenges on how to live there and protect these coasts. Scientists have now investigated the potential and limitation of mangrove restoration as a cost-effective and sustainable solution for coastal protection in rapidly subsiding areas.
Published To prepare for next pandemic, researchers tackle bird flu
(via sciencedaily.com) Original source Researchers have developed an improved way to test potential vaccines against bird flu.
Published Genome study reveals 30 years of Darwin's finch evolution
(via sciencedaily.com) Original source An international team of researchers has released a landmark study on contemporary evolutionary change in natural populations. Their study uses one of the largest genomic datasets ever produced for animals in their natural environment, comprising nearly 4,000 Darwin's finches. The study has revealed the genetic basis of adaptation in this iconic group.
Published Insights into early snake evolution through brain analysis
(via sciencedaily.com) Original source Recent study sheds new light on the enigmatic early evolution of snakes by examining an unexpected source: their brains. The results emphasize the significance of studying both the soft parts of animals’ bodies and their bones for understanding how animals evolved.
Published Explosion in fish biodiversity due to genetic recycling
(via sciencedaily.com) Original source The rapid formation of 500 different species of fish in a single lake, each with specialized ecological roles, resulted from a small but genetically diverse hybrid population.
Published Did animal evolution begin with a predatory lifestyle?
(via sciencedaily.com) Original source Surprising findings on the development of sea anemones suggest that a predatory lifestyle molded their evolution and had a significant impact on the origin of their nervous system. The researchers were able to show that the young life stages (larvae) of the small sea anemone Aiptasia actively feed on living prey and are not dependent on algae. To capture its prey, the anemone larvae use specialized stinging cells and a simple neuronal network.
Published Polyps as pixels: Innovative technique maps biochemistry of coral reefs
(via sciencedaily.com) Original source Using an innovative new approach to sampling corals, researchers are now able to create maps of coral biochemistry that reveal with unprecedented detail the distribution of compounds that are integral to the healthy functioning of reefs.
Published Wild Asian elephants display unique puzzle solving skills
(via sciencedaily.com) Original source A new study has documented the abilities of individual wild Asian elephants to access food by solving puzzles that unlocked storage boxes. It is the first research study to show that individual wild elephants have different willingness and abilities to problem solve in order to get food.
Published Fish reveal cause of altered human facial development
(via sciencedaily.com) Original source Some substances in medicines, household items and the environment are known to affect prenatal child development. Researchers tested the effects of five drugs (including caffeine and the blood thinner warfarin) on the growth of zebrafish embryos. They found that all five had the same effect, impairing the migration of bone-forming cells which resulted in the onset of facial malformation. Zebrafish embryos grow quickly, are transparent and develop outside of the parent's body, making them ideal for studying early development. A zebrafish-based system could be used to easily screen for potentially harmful substances, reducing animal testing on mammals and supporting parents-to-be when making choices for themselves and their baby.
Published Boo to a goose -- new animal behaviour tech aims to save wildlife
(via sciencedaily.com) Original source Facial recognition software used to study the social behavior of individual Greylag Geese in Europe will soon be used to monitor one of the rarest geese in the world, the Cape Barren Goose in South Australia. The technology was used to assess how each bird responds to images of themselves, other flock mates or partners and researchers say it could be used by other scientists or in citizen science apps around the world to monitor and record endangered wildlife or even to promote the welfare of animals in captivity.
Published A turtle time capsule: DNA found in ancient shell
(via sciencedaily.com) Original source Paleontologists discover possible DNA remains in fossil turtle that lived 6 million years ago in Panama, where continents collide.
Published Vision in the brain: Hardwired for action
(via sciencedaily.com) Original source Brain circuits for vision develop without any kind of input from the retina in zebrafish.
Published Why are killer whales harassing and killing porpoises without eating them?
(via sciencedaily.com) Original source For decades, fish-eating killer whales in the Pacific Northwest have been observed harassing and even killing porpoises without consuming them —- a perplexing behavior that has long intrigued scientists.
Published Whales Around the World Play With Kelp Clumps
(via sciencedaily.com) Original source A new article has analyzed another understudied behavior in baleen (filter-feeding) whales such as humpback whales in different populations across the northern and southern hemispheres. They appeared to roll around and 'play' with clumps of kelp and seaweed at the water's surface. The research also emphasizes that the behavior was similar in different individuals, regardless of where in the world it occurred.
Published Atlantic walrus more vulnerable than ever to Arctic warming
(via sciencedaily.com) Original source Past cycles of climate change, along with human exploitation, have led to only small and isolated stocks of Atlantic walrus remaining. The current population is at high risk of the same issues affecting them severely, according to a new study.
Published Study shows how a single neuron's parallel outputs can coordinate many aspects of behavior
(via sciencedaily.com) Original source In C. elegans worms, a single neuron named HSN uses multiple chemicals and connections to orchestrate egg-laying and locomotion over the course of several minutes.