Long before they develop neurofibrillary tangles or beta-amyloid plaques, brains with Alzheimer’s disease begin experiencing problems in their cells’ power plants — the mitochondria — that hinder their ability to make energy for cells.
Declines in gene expression related to mitochondria can occur in subjects as young as their early 30s.
Read/listen to my full story at KJZZ’s Arizona Science Desk:
Arizona Researchers Say Genetic Changes Could Help Spot Alzheimer’s Disease Early
Bodies buried in unusual postures and without funeral rites could suggest a history of revenge and blood feud in certain ancient Sonoran Desert cultures, according to a paper in the August 2016 edition of Current Anthropology.
The authors say a rude burial would have deeply distressed the victim’s family and community — and sent a message of dominance and defiance. Read/listen to my full story at KJZZ’s Arizona Science Desk:
Haphazard Burials May Suggest Revenge, Blood Feud Among Sonoran Desert Cultures
It’s said that we all have a double somewhere in the world. It’s a haunting thought, but almost comforting compared to the harrowing tales of identity theft we hear on the nightly news. But, hey, we live in the age of fingerprints, DNA and CSI, right? The post-911 world of ever-more Orwellian identification requirements? Surely we’ve left cases of mistaken identity firmly in the past.
You know where this is going …
In honor of World Oceans Day (June 8), here’s my recent article on some of the remarkable discoveries made by marine biologists over the past few years. From clearing up the murky “lost years” of juvenile turtles to further solidifying our understanding of a jellyfish’s final fate, these delvers of the deep have shrunk what Shakespeare called “the vasty deep” to something a bit more fathomable but no less amazing. Find out more as I take a deep dive into …
I don’t know about you, but I could spend all day watching nature documentaries. Nature is endlessly fascinating, adaptive and, occasionally, just plain scary.
Take the insect world, for example. You can wax lyrical about butterfly wings all you like, but when it’s time to throw down — or just plain survive — you do not want to mess with an insect. They will end you, and I’ve 10 good reasons why: