Several hundred thousand years ago, the bottom of the Earth's old ice age, the fragile honey bones, which was the double weight of its modern relative, in the snowy euphoria of Eurasia. 11,000 years ago, after their disappearance, these animals, known as the cave hienas, are adorned with predatory eggs and eat dear ears.
The international team comprising the energy department researchers at the SLAC's National Acupuncturist Laboratory, now found out what life would be these hulking creatures. They found that despite their massive size, some cave Hyenas experienced times of hardship that affect their bone, causing areas of busy growth that appear as dark lines as the rings of the tree trunk.
The study was conducted by the Indianapolis Children's Museum Paleontologist Jennifer Anne and published Analytical atomic spectrometry journalRadiation Lightsource (SSRL) of Stanford Stenford USSR, which uses low concentrations or traces, bone elements, long-term animals to understand biological information.
"This work, which contains an old chemical ballet, can justify the environmental impact on the backbone of the past and what's going to happen in the future," says the film's natural writer Phil Menling, Manchester University in the UK, head of peer and laboratory research.
The history of life in bones
In order to preserve the survival of chemical elements, the body combines them with the skeleton, making sure they are not leached away in everyday processes. Since bones are constantly changing, researchers are able to learn from the history of animal life when it first developed what happened before he died.
"Your bone may be half a periodic table in its structure," says Anne. "This is one of the greatest goals of the skeleton: this is a very important storage and release area for a number of elements that you intend to use throughout life. In our research, we try to find out what trace elements I can tell about the organism."
During his research, Ene explores the bone scratch that other researchers have often been thrown away, giving a greater sample and more freedom to use it. HIM, he says, is a random sample and something more than expected.
Ice Age Boneyard
The SSRL was used by the X-ray fluorescence technique exhibited on the X-rays of the honey bone patterns in order to create the interior of the electrons from materials atoms. When the outer electrons go into their place, the atoms can hold fluorescence light. Since every chemical element has its own signature light plane, this technique has enabled the researchers to map the distribution elements of the bone. Diamond light source U.K. They gave them a better understanding of the concentration of each element.
In the cave in England, ice-age fossils of flowers have been found in fragments of the specific cave honey bones allocated from this paper dating back to 40,000. The researchers used today's acute hinnies as analogues to see what was happening with their modern organism and not the leakage of the underlying environment.
Nothing about laughter
One of the researchers was the zinc that is closely related to bone growth. Cycle bone growth patterns are already known for paleontologists, often in slow and rapidly growing bone alternatives. These zones allow researchers to recover the age, growth, diet and other lifestyle factors.
When the animal has nutrients and continuous supply of minerals, bone growth constantly pushes, creating porous, zinc rich zones. But when the metabolism of the animal slows down, it may be due to stress or starvation, as well as bone growth, creating a dense bone or bone "rest" lines. Paleontologists believe that these lines correspond to factors such as variables and reproductive cycles.
When the researchers inserted the zinc distribution and concentration in this particular hijen, they noticed thin lines that seemed to be on the pencil's track and marked the growing spheres. Modern hyne bones and cave hay fossils in various sites and timing do not express these lines, suggest that this hyphen emphasized that others did not know.
"The animal that is under the age of ice may be a good time and sometimes difficult," says Nick Edwards, a SLAC researcher who is a co-author and a part of a research group. "We are not sure what the stresses are, but these lines still show how the animal was with them."
Long-term species connection
In order to perform this research, Anne hopes that he learned about the different types of tissues in different species, both modern and extinct, better understanding of the bone and the researchers about the organism. Last update of the SSRL marker used in this survey will allow the team to improve their images, evaluate the entire range of trace elements in high resolution and move to interesting areas, even without moving things.
Current research is a series of team research papers that use SLAC-based techniques. A 150 million year old dinosaur fossil saw Allosorus and another 19 million years old.
"In addition to these publications, the trace elements can reveal ancient species over 100 million years," says SLAC's acknowledged SLAC scientist and research co-author. "We hope what we've learned will allow us to get back to another extinct animal life."
The pioneer of clear light research first revealed the density of the sea cow bone
Jennifer Anne and others. Morphological and Chemical Evidence for Cyclic Bone Growth, Analytical atomic spectrometry journal (2018). DOI: 10.1039 / c8ja00314a