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Can we end the cage age?

Between 2018 and 2020, 1,4 million EU citizens signed the petition End the Cage Age , with the aim of ending cage housing for farm animals in Europe. In response to this citizens initiative, the European Parliament requested a study by Utrecht University researchers on the possibilities to end cage housing. On 13 April, the scientists will present their report End the Cage Age - Looking for Alternatives to the European Parliament. ....

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Fireflies have a potential -- protective 'musical armor' against bats

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IMAGE: New study reveals: fireflies produce strong ultrasonic sounds that might deter bats, potentially serving as a kind of musical armor against these predators.
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Credit: BRANDON ALMS
A new study at Tel Aviv University reveals a possible defense mechanism developed by fireflies for protection against bats that might prey on them. According to the study, fireflies produce strong ultrasonic sounds - soundwaves that the human ear, and more importantly the fireflies themselves, cannot detect. The researchers hypothesize that these sounds are meant for the ears of bats, keeping them away from the poisonous fireflies, and thereby serving as a kind of musical armor . The study was led by Prof. Yossi Yovel, Head of the Sagol School of Neuroscience, and a member of the School of Mechanical Engineering and the School of Zoology at the George S. Wise Faculty of Life Sciences. It was conducted in collaboration with the Vietnam Academy of Scienc ....

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Low risk of researchers passing coronavirus to North American bats

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IMAGE: USGS wildlife disease specialist Kimberli Miller collects field samples from a white-nose syndrome positive cave in Vermont.
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Credit: USGS
The risk is low that scientists could pass coronavirus to North American bats during winter research, according to a new study led by the U.S. Geological Survey. Scientists find the overall risk to be 1 in 1,000 if no protective measures are taken, and the risk falls lower, to 1 in 3,333 or less, with proper use of personal protective equipment or if scientists test negative for COVID-19 before beginning research.
The research specifically looked at the potential transmission of SARS-CoV-2, which is the type of coronavirus that causes COVID-19, from people to bats. Scientists did not examine potential transmission from bats to people. ....

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Study shows how varying climate conditions impact vulnerable species

Credit: University of Arkansas
New findings on the diet of Arctic foxes, determined by the condition of their teeth, show how varying climate conditions in the Arctic affect the animals that live there.
In a study published in
Polar Biology, Peter Ungar, Distinguished Professor of anthropology at the University of Arkansas, and several co-authors analyzed tooth breakage and wear - both gross and micro - of Arctic foxes from Russia s Yamal Peninsula.
Studying the effect of varying climate conditions within this region helps scientists understand the impact of climate change on vulnerable animals and could explain future responses and adaptation, given the warming trend and thawing in Arctic areas. The researchers study is the first to combine dental proxies for short-term, or seasonal, and long-term, or lifetime, diet to better understand how resource depletion affects species differently in different locations within the Arctic. ....

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New study links protein causing Alzheimer's disease with common sight loss

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Newly published research has revealed a close link between proteins associated with Alzheimer s disease and age-related sight loss. The findings could open the way to new treatments for patients with deteriorating vision and through this study, the scientists believe they could reduce the need for using animals in future research into blinding conditions.
Amyloid beta (AB) proteins are the primary driver of Alzheimer s disease but also begin to collect in the retina as people get older. Donor eyes from patients who suffered from age-related macular degeneration (AMD), the most common cause of blindness amongst adults in the UK, have been shown to contain high levels of AB in their retinas. ....

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