Tuesday, May 11, 2021

Arctic Climate Change and Fossil Fuel Pollution is Altering Narwhal Tusks – Veterans Today

Must Read

Intel Drop, May 11, 2021 – Veterans Today

VT is ready to cite, for its intelligence briefings to clients, what we now believe is an inexorable fact:The...

Don’t Blame the Pandemic for Spiking Crime — The Patriot Post

With major U.S. metros like New York City experiencing...

Judge Tosses NRA Bankruptcy Bid, Singles Out Wayne LaPierre For Criticism, ‘Nothing Less Than Shocking’

A federal judge in Dallas ruled on Tuesday that the National Rifle Association cannot use bankruptcy to reorganize in...

Study of Narwhal Tusks Reveals a Swiftly Changing Arctic

By Alex Fox/Smithsonianmag.com

Male narwhals grow spiraling tusks throughout their lives that can reach lengths of up to ten feet. Now, analysis of these tusks reveals narwhals in the Arctic are altering their diets as climate change reduces the extent of sea ice. Warming and fossil fuel pollution may also be contributing to a large increase in concentrations of the toxic heavy metal mercury accumulating in the whales’ bodies, reports Molly Taft for Gizmodo.

The research, published last month in the journal Current Biology, looked at the chemical composition of ten tusks from whales killed by Inuit subsistence hunters off the coast of northwest Greenland, reports Ellie Shechet for Popular Science.

Since a narwhal’s tusk, which is actually a specialized tooth, grows in annual layers like the rings of a tree trunk, researchers can study the layers to look back in time, reports Matt Simon for Wired.

“Each of the individual layers in a tree gives you a lot of information about the condition of the tree in that year of growth,” Jean-Pierre Desforges, a wildlife toxicologist at McGill University, tells Gizmodo. “It’s the exact same way with a narwhal tusk.

Read More:

Carol graduated from Riverside White Cross School of Nursing in Columbus, Ohio and received her diploma as a registered nurse. She attended Bowling Green State University where she received a Bachelor of Arts Degree in History and Literature. She attended the University of Toledo, College of Nursing, and received a Master’s of Nursing Science Degree as an Educator.

She has traveled extensively, is a photographer, and writes on medical issues. Carol has three children RJ, Katherine, and Stephen – one daughter-in-law; Katie – two granddaughters; Isabella Marianna and Zoe Olivia – and one grandson, Alexander Paul. She also shares her life with husband Gordon Duff, many cats, and two rescue pups.

Carol’s Archives 2009-2013

ATTENTION READERS
Due to the nature of independent content, VT cannot guarantee content validity.
We ask you to Read Our Content Policy so a clear comprehension of VT’s independent non-censored media is understood and given its proper place in the world of news, opinion and media.

All content is owned by author exclusively. Expressed opinions are NOT necessarily the views of VT, other authors, affiliates, advertisers, sponsors, partners or technicians. Some content may be satirical in nature. All images within are full responsibility of author and NOT VT.

About VTRead Full Policy NoticeComment Policy

Read more