Long-fingered bat swooping to catch a fish.
(Image by Antton Alberdi and Ostaizka Aizpurua)

Some bats can diversify their diets with fish

Long-fingered bats that normally have an exclusively insect-based diet may catch fish in certain regions, a new study found. Researchers studied two groups of long-fingered bats – those known to catch fish and others that were exclusively insectivorous – to see their reactions to insect-like and fish-like prey. Although both groups could attack the fish-like […]

The tip of a preserved dinosaur tail section, with feathers arranged down both sides of tail. (Image by Royal Saskatchewan Museum (RSM/ R.C. McKellar))

Feathered dinosaur tail discovered in a piece of amber

Scientific discoveries often come from unexpected places – like a Myanmar amber market, which is where a researcher from Dexu Institute of Palaeontology found an item that offers unique insights into feather evolution in dinosaurs. Browsing through the goods of an amber vendor, researcher Lida Xing found what turned out to be a part of […]

New monitoring technique uses eDNA to learn about deepwater fish populations

Monitoring populations of polar and deepwater fish can be challenging due to their remote and often inaccessible habitats. A new study used a non-invasive analysis of environmental DNA in seawater samples to learn about several species of fish off the coast of Southwest Greenland. The researchers then compared eDNA analysis results to catch data by […]

Image by Alaska Region U.S. Fish & Wildlife Service via Flickr CC2.0

Rapid adaptive evolution of colour vision in threespine stickleback

Colour vision can evolve to be better adapted to a particular environment in as little as 12,000 years. Authors of a new study out of UBC found that different populations of the threespine stickleback, a small fish that is able to live in fresh- or saltwater, have evolved to see different colours better depending on […]

Ophiuroidea (brittle stars), a dominant component of sea-floor fauna (Image via Wikimedia Commons)

Deep-ocean biodiversity follows a different set of rules

The diversity of life in the deep ocean is driven by the availability of food and not the temperature, as it is in shallower waters. Understanding biodiversity in the deep sea becomes increasingly important as species on the seafloor face pressure from deep-sea fishing and mining. A team of researchers from Canada and Australia analysed […]

Image by John Flannery via Flickr CC2.0

Tweet louder, I can’t hear you: Highway noise disrupts information transfer between bird species

Communication between birds is disrupted near major roadways, where the noise levels are unnaturally high. According to new research from University of Florida Institute of Food and Agricultural Sciences, this avian communication breakdown may help explain the pattern of reduced biodiversity near highways. Authors of the new study were curious about how building homes in […]

This is pretty crabby

Thousands of red crabs swarming in low-oxygen waters off the coast of Panama have been captured on video during a recent diving expedition. The crabs were identified by DNA as Pleuroncodes planipes, or Tuna Crabs, which have never been seen in waters so far south. The lead author, Jesús Pineda, said “when we dove down […]

Learning from the naked mole rat

When most mammals, including humans, are in a low-oxygen environment they begin to hyperventilate to increase their oxygen uptake. However this is an energetically costly way to increase oxygen levels in the body. The naked mole rat is unique from other mammals; when it is exposed to hypoxia (low oxygen levels) it does not begin […]

Conservations silver bullet

Removing invasive mammals has major benefits to an island ecosystem, according to a new study. As this type of conservation effort is expensive, researchers set out to understand the impact of this strategy. The benefits they saw “highlight the importance of this conservation measure for protecting the world’s most threatened species.” Original research paper published in the Proceedings of […]

wo ichthyosaurs (Pervushovisaurus bannovkensis) wandering in an artist’s impression. (Image credit: Andrey Atuchin)

Solving the Disappearance of the Ichthyosaur

The Ichthyosaur, a dolphin-like reptile, ruled the oceans at the time of the dinosaurs, but then disappeared from the fossil record. Now new research seems to have figured out why. Their demise appears to be the result of climate change and a slow rate of evolution. Ichthyosaurs became extinct 90 million years ago, 28 million […]

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