Search For "mammals"
Fossils reveal dinosaurs of prehistoric Patagonia: Research
Updated : 3 years, 1 month ago IST
A study is providing a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, just before the non-avian dinosaurs went extinct. The fossils represent the first record of theropods, a dinosaur group that includes both modern birds and their closest non-avian dinosau
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Study explains how genetic changes are responsible for the evolution of ph
Updated : 3 years, 2 months ago IST
What genetic changes are responsible for the evolution of phenotypic traits? This question is not always easy to answer. A newly developed method now makes the search much easier.
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Study finds how high-energy X-rays trace destruction in bone samples
Updated : 3 years, 2 months ago IST
X-rays cause damage to living tissue, there are clear medical reasons to limit your exposure to radiation. Researchers use increasingly powerful X-ray sources in basic research on the properties and characteristics of mineralised tissue samples such as bone.
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New study identifies key neurons that maintain body temperature in mammals
Updated : 3 years, 2 months ago IST
A group of neurons, called EP3 neurons, in the preoptic area of the brain play a key role in regulating body temperature in mammals, reported a research group at Nagoya University in Japan.
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Key neurons that maintain body temperature in mammals identified in new st
Updated : 3 years, 2 months ago IST
A group of neurons, called EP3 neurons, in the preoptic area of the brain play a key role in regulating body temperature in mammals, reported a research group at Nagoya University in Japan.
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Scientists study 155 new genes to see how humans continue to evolve
Updated : 2 years, 4 months ago IST
Nearly 7 million years ago, modern humans diverged from our chimpanzee ancestors, yet we have since continued to evolve. Within the human lineage, 155 novel genes that spontaneously developed from little fragments of our DNA have been discovered. A handful of these "microgenes" are projected
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Rare discovery of dinosaur remains preserved with its last meal: Research
Updated : 3 years, 2 months ago IST
Microraptor was opportunistic predator, feeding on fish, birds, lizards and now small mammals. The discovery of a rare fossil reveals the creature was a generalist carnivore in the ancient ecosystem of dinosaurs.
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Study finds how humans continue to evolve with new genes
Updated : 3 years, 2 months ago IST
Even though we diverged from our chimpanzee ancestors about 7 million years ago, we are still evolving today. The human lineage has 155 novel genes that spontaneously developed from little fragments of our DNA. Some of these novel "microgenes" are thought to be linked to diseases that are un
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Twin brothers of spotted hyenas are often attracted to the same new group:
Updated : 3 years, 2 months ago IST
In most mammals, males disperse to a new group after reaching sexual maturity. Dispersal often entails costs and is risky. New results from spotted hyenas show that males from the same birth group and particularly twin brothers very often disperse together and choose the same group to breed.
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Ancient superpredator got big by front-loading its growth in its youth: St
Updated : 3 years, 3 months ago IST
Whatcheeria, a six-foot-long salamander-like creature that lived 340 million years ago, was the T. rex of its time: the biggest, baddest predator in its habitat. A new study reveals how they grew to their "giant" size: instead of growing slow and steady throughout their lives like many moder
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Venom in snakes and salivary protein in mammals share a common origin: Stu
Updated : 3 years, 3 months ago IST
Snakes, some lizards and even a few mammals can have a venomous bite. Although these lineages split more than 300 million years ago, their venoms have evolved from the same ancestral salivary protein, reported scientists today in BMC Biology.
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Entomologists warn about how insects will be affected by climate change
Updated : 3 years, 4 months ago IST
In a new scientific review, a team of 70 scientists warned that climate change affects insects in ways that will 'drastically reduce our ability to build a sustainable future based on healthy, functional ecosystems' if no action is taken.
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