Zoology News -- ScienceDaily Zoology. News and videos on animal life sciences. Read the latest research in zoology. Updated daily.

  • Jellyfish, with no brains, still seem to sleep
    on September 21, 2017 at 6:12 pm

    The discovery that primitive jellyfish sleep suggests that sleep is an ancient, evolutionarily conserved behavior. […]

  • Early trilobites had stomachs, new fossil study finds
    on September 21, 2017 at 6:12 pm

    Exceptionally preserved trilobite fossils from China, dating back to more than 500 million years ago, have revealed new insights into the extinct marine animal's digestive system. The new study shows that at least two trilobite species evolved a stomach structure 20 million years earlier than previously thought. […]

  • Dino-killing asteroid's impact on bird evolution
    on September 21, 2017 at 4:11 pm

    Human activities could change the pace of evolution, similar to what occurred 66 million years ago when a giant asteroid wiped out the dinosaurs, leaving modern birds as their only descendants. […]

  • Surprising discovery: How the African tsetse fly really drinks your blood
    on September 21, 2017 at 3:06 pm

    Researchers have been taking a close-up look at the biting mouthparts of the African tsetse fly as part of ongoing work on the animal diseases it carries. Using a new high-powered scanning electron microscope, researchers were able to see the rows of sharp teeth and rasps that the fly uses to chew through the skin when it bites. […]

  • Big herbivorous dinosaurs ate crustaceans as a side dish
    on September 21, 2017 at 2:17 pm

    Some big plant-eating dinosaurs roaming present-day Utah some 75 million years ago were slurping up crustaceans on the side, a behavior that may have been tied to reproductive activities, says a new study. […]

  • Obese dogs helped by 'effective' weight loss trials
    on September 21, 2017 at 2:17 pm

    On average overweight dogs lose an average of 11 percent of their body weight when enrolled on a weight loss trial according to researchers who have conducted the largest international multi-center weight study. […]

  • An extraordinary cave animal found in Eastern Turkmenistan
    on September 21, 2017 at 1:02 pm

    A remote cave in Eastern Turkmenistan was found to shelter a marvelous cave-adapted inhabitant that turned out to represent a species and genus new to science. This new troglodyte is the first of its order from Central Asia and the first strictly subterranean terrestrial creature recorded in the country. […]

  • Going diving in the tropics? Don't eat the reef fish!
    on September 21, 2017 at 1:02 pm

    Reducing tourist consumption of reef fish is critical for Palau's ocean sustainability, finds a new study that suggests other small island nations might also consider adopting this strategy. […]

  • Efforts to save sea turtles are a 'global conservation success story'
    on September 20, 2017 at 10:21 pm

    A new study of the world's seven sea turtle species provides evidence that their numbers are growing overall (unlike many endangered vertebrates), thanks to years of conservation efforts that have played a key role in sea turtle recovery -- even for small sea turtle populations. […]

  • Plants combine color and fragrance to procure pollinators
    on September 20, 2017 at 6:47 pm

    Who knew that it's possible to predict the fragrance of a flower by looking at its color? This is true for many of the 41 insect-pollinated plant species growing in a Phrygana scrubland habitat on the Greek island of Lesbos. […]

  • Fly away home? Ice age may have clipped bird migration
    on September 20, 2017 at 6:46 pm

    The onset of the last ice age may have forced some bird species to abandon their northerly migrations for thousands of years, says new research led by an ornithologist. The study challenges a long-held presumption that birds merely shortened their migratory flights when glaciers advanced south to cover much of North America and northern Europe about 21,000 years ago. […]

  • Foster tadpoles trigger parental instinct in poison frogs
    on September 20, 2017 at 2:43 pm

    Poison frogs, especially male poison frogs, are very caring parents. After the tadpoles hatch, the males piggyback their offspring to distant pools spread around the rainforest where they can feed and develop. A recent study shows that this parental behavior can be triggered experimentally. When unrelated tadpoles are placed on the backs of adult frogs, male – and even female – “foster parents” make their way to pools in the forest in the same way as if they had picked up the tadpoles themselves. […]

  • Could condors return to Northern California?
    on September 20, 2017 at 2:00 pm

    In 2003, Northern California's Yurok Tribe initiated efforts to reintroduce California condors on their lands. While wild condors have not existed in the region for more than a hundred years, a new study suggests that hunters transitioning from lead to non-lead ammunition may allow these apex scavengers to succeed there once again. […]

  • Emerging disease further jeopardizes North American frogs
    on September 19, 2017 at 8:02 pm

    A deadly amphibian disease called severe Perkinsea infections, or SPI, is the cause of many large-scale frog die-offs in the United States, according to a new study. […]

  • Monk parakeets invade Mexico
    on September 19, 2017 at 6:04 pm

    A recent, rapid, and ongoing invasion of monk parakeets in Mexico has been described in a new article, including the regulatory changes that affected the species' spread. […]

  • Running roaches, flapping moths create a new physics of organisms
    on September 19, 2017 at 4:31 pm

    Sand-swimming lizards, slithering robotic snakes, dusk-flying moths and running roaches all have one thing in common: They're increasingly being studied by physicists interested in understanding the shared strategies these creatures have developed to overcome the challenges of moving though their environments. […]

  • Nonlinear physics bridges thoughts to sounds in birdsong
    on September 19, 2017 at 3:05 pm

    The beautiful sound of birdsongs emerging from the trees is a wonderful example of how much nature can still teach us, even as much about their origins are still mysterious to us. About 40 percent of bird species learn to vocalize when they are exposed to a tutor, a behavior of interest to many neurologists and neurobiologists. The other 60 percent can vocalize instinctually in isolation. The variety across species, and the relationship between the nervous system and biomechanics makes birdsong production a complex process to unravel and understand. […]

  • New hosts for Chagas disease vectors identified
    on September 19, 2017 at 2:26 pm

    Solitary weasel-like animals called tayra might look pretty harmless, but some may actually be incubators for a parasite that causes Chagas disease, a chronic, debilitating condition that is spread by insects called kissing bugs and affects more than 8 million people worldwide. […]

  • Declining queen conch populations are fragmented and that's changing the conservation game
    on September 19, 2017 at 1:10 pm

    To provide a vital scientific foundation for conservation efforts, an international team has conducted a genetic analysis comparing queen conch at 19 sites throughout the Caribbean. Their findings will help scientists understand how local subpopulations of conch are fragmented throughout the Caribbean, an essential first step needed to develop effective science-driven management plans and practices. […]

  • Owners of seriously ill pets at risk of stress, anxiety and depressive symptoms
    on September 19, 2017 at 2:22 am

    Owners of seriously or terminally ill pets are more likely to suffer with stress and symptoms of depression and anxiety, as well as poorer quality of life, compared with owners of healthy animals, finds a study. […]

  • When it comes to the threat of extinction, size matters
    on September 18, 2017 at 5:27 pm

    Animals in the Goldilocks zone -- neither too big, nor too small, but just the right size -- face a lower risk of extinction than do those on both ends of the scale, according to an extensive global analysis. […]

  • Scientists show molecular basis for ants acting as 'bodyguards' for plants
    on September 18, 2017 at 4:35 pm

    Though you might not think of ants as formidable bodyguards, some do an impressive job protecting plants from enemies. Examing the relationship between the Amazon rainforest plant Cordia nodosa in Peru and the ant species Allomerus octoarticulatus, scientists found the degree to which the ants express two genes significantly impacts the amount of protection they provide to their hosts. […]

  • Genomic recycling: Ancestral genes take on new roles
    on September 18, 2017 at 3:18 pm

    One often hears about the multitude of genes we have in common with chimps, birds or other living creatures, but such comparisons are sometimes misleading. The shared percentage usually refers only to genes that encode instructions for making proteins -- while overlooking regulatory genes, which nonetheless make up a large part of the genome. […]

  • Sheep gene insights could help farmers breed healthier animals
    on September 18, 2017 at 2:06 pm

    Fresh insights into the genetic code of sheep could aid breeding programs to improve their health and productivity. Scientists have now mapped which genes are turned on and off in the different tissues and organs in a sheep's body. […]

  • Welfare of zoo animals set to improve
    on September 18, 2017 at 1:33 pm

    The wellbeing of zoological animals is set to improve following the successful trial of a new welfare assessment grid. […]

  • Delayed weaning reduces behavioural problems in cats
    on September 15, 2017 at 8:52 pm

    Early weaning increases aggression and stereotypic behavior in cats. Based on the study, the recommended weaning age of 12 weeks should be raised by at least two weeks. Delaying weaning is an easy and cost-efficient way of improving the quality of life of cats. […]

  • Ancient amphibian had mouthful of teeth ready to grab you
    on September 15, 2017 at 7:58 pm

    The idea of being bitten by a nearly toothless modern frog or salamander sounds laughable, but their ancient ancestors had a full array of teeth, large fangs and thousands of tiny hook-like structures called denticles on the roofs of their mouths that would snare prey, according to paleontologists. […]

  • Scientists question study about plastic-eating caterpillars
    on September 15, 2017 at 6:41 pm

    Do the larvae of the wax moth really solve the world's plastic problem? Sensational report of biochemical degradation of polyethylene by caterpillars not confirmed. […]

  • New organelled discovered in parasitic wasp venom
    on September 15, 2017 at 6:41 pm

    Biologists have identified the composition of 'virus-like particles' (VLPs) found in the venom of a wasp that is a parasite of fruit flies. Invisible to the eye, wasp VLPs suppress the flies' immune responses by killing their blood cells. […]

  • Celebrity fossil reveals all for science
    on September 15, 2017 at 2:35 pm

    With the help of an artist, a geology professor has figuratively speaking breathed life into one of science's most well-known fossil species; Agnostus pisiformis. The trilobite-like arthropod lived in huge numbers in Scandinavia a half-billion years ago. Today, this extinct species provides important clues for science in several ways. […]