Animals

Melatonin responsible for nocturnal hum of midshipman fish

Melatonin responsible for nocturnal hum of midshipman fish

A mystery continuing from 1980s has finally been solved, as scientists have come to know the source behind low-voice humming in sea is the midshipman fish. At that time, California houseboats residents used to think that the noise could be due to sewage pumps or military experiments.

Males of the species take out a courtship call to woo females during the breeding season. The research paper published in the journal Current Biology has unveiled that the study researchers took the midshipman fish into their lab so as to know why the fish sing at night.

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Cats sailed with Vikings during ancient sea voyages: study

Cats sailed with Vikings during ancient sea voyages: study

Thousands of years before cats became one of the most common pets in U.S. households, they were hopping continents with ancient mariners, farmers and even Vikings, a new research revealed.

An extensive study of ancient feline DNA has revealed how cats, which have outnumbered dogs by 75 million across the globe, were domesticated in the Near East and Egypt around 15,000 years ago.

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Louisiana DWF celebrates National Hunting & Fishing Day

Louisiana DWF celebrates National Hunting & Fishing Day

The Louisiana Department of Wildlife & Fisheries (DWF) participated in the annual National Hunting and Fishing Day, celebrated at the Ouachita Parish Sheriff’s Rifle Range in West Monroe on Saturday.

As the name suggests, the annual National Hunting & Fishing Day, is a national event that is celebrated in all fifty states in honor of the conservation effort of the nation’s hunters and anglers.

Research explains how water bears can survive a radioactive apocalypse

Research explains how water bears can survive a radioactive apocalypse

A journal Nature Communications-published research paper has come to know about a gene in tardigrades that help them survive extreme conditions, including boiling, freezing and radiation.

The researchers said that the revelation could help them protect human cells. The University of Tokyo-led team has come to know that tardigrades also known as water bears have a protein that protects its DNA. The protein covers the specie’s DNA like a blanket.

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Back with a Bang: California sea otter population at its highest since record-keeping started in 1982

Back with a Bang: California sea otter population at its highest since record-keeping started in 1982

California sea otters’ population has reached a record high. A latest survey has unveiled that the population of the ocean ambassadors of Monterey Bay and Big Sur is currently the highest since 1982 when federal and state officials first started maintaining the record.

This year’s sea otters’ population stands at 3,272, which is an 11% rise since 2013. Tim Tinker, a research biologist, who leads the US Geological Survey’s otter program, said that increase in the population of sea urchins, favorite food of the otters, seem to be the reason behind rise in the otters’ population.

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Fossil reveals unique camouflage pattern used by Psittacosaurus

Scientists unveil unique camouflage pattern used by Psittacosaurus

Dinosaur fossils discovered in the recent years have offered very interesting information about various species that thrived the planet in the past and Psittacosaurus fossil presents a unique camouflage patterns noticed in any dinosaur species for the first time. Scientists have carried out a detailed assessment of a well-preserved Chinese Psittacosaurus fossil. After the fossil analysis, they have come to know that the dinosaur had a defense mechanism that has been never seen before in any other dinosaur species.

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Google’s Global Fishing Watch aims to reduce overfishing and illegal fishing in oceans

Google’sGlobal Fishing Watch aims to reduce overfishing and illegal fishing in oceans

Google’s new satellite-based surveillance system named Global Fishing Watch aims to change current scenario where illegal and unreported fishing has become quite a task to combat. Owing to limited resources, it has become difficult to catch renegade fishermen.

The new satellite-based surveillance system will keep on combing the world from the sky in order to find out those illegally using the oceans. Marine-advocacy group Oceana and West Virginia-based nonprofit SkyTruth were involved with Google in the development of Global Fishing Watch.

Google’s Global Fishing Watch aims to combat overfishing and illegal fishing

Google’s Global Fishing Watch aims to combat overfishing and illegal fishing

Google will unveil its new satellite-based surveillance system that aims to change current situation on illegal fishing. Global Fishing Watch has been designed to keep a constant check to look out for those indulging in this trade.

The system has been made in partnership with Oceana, a marine-advocacy group, and West Virginia-based nonprofit SkyTruth. It would be a completely free platform that would prove useful for governments, journalists and citizens to keep a tab on around 35,000 commercial fishing vessels.

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Large animals in modern oceans face greater extinction risk than small ones

Large animals from modern oceans face greater extinction risk than small ones

Lately, scientists have unveiled that big fish and other ocean creatures are more vulnerable to face extinction than small creatures. The revelation has challenged the most common notion.

It has been said so as fossils from five mass extinction events have suggested that small marine animals were at increased risk to become extinct than big ones in the pre-historic cataclysms. But what was found was large modern fish, including tuna and sharks and mammals were increasingly being list on ‘Red List’ of endangered species than smaller ones.

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Hawaiian crows use twigs to dig prey out of hard-to-reach spots

Hawaiian crows use twigs to dig prey out of hard-to-reach spots

A journal Nature-published research paper has unveiled that the Hawaiian crow holds twigs in its teeth to take out insects and other prey from difficult to reach places. Study researchers have said that the Hawaiian crow is the only second member of its genus to be known to carry out such tasks.

Study’s lead researcher Christian Rutz from the University of St. Andrews said that the discovery is no less than eureka moment for them. For over a decade, researchers have been studying New Caledonian crows, the first member of the genus known as Corvus known for natural tool use.

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