The idea of taking apart a rat's heart and transforming it into a tissue-engineered stingray first came to Kevin Kit Parker during a trip to the New England Aquarium with his daughter.
Robotics
Aug 8, 2016
2
2819
Mammoths, which went extinct about 10,000 years ago, may once again walk the Earth.
Biotechnology
Jan 16, 2011
133
1
(AP) -- Call it pork in a petri dish - a technique to turn pig stem cells into strips of meat that scientists say could one day offer a green alternative to raising livestock, help alleviate world hunger, and save some pigs ...
Biotechnology
Jan 15, 2010
10
0
George Brooks has been trying to reshape thinking about lactate—in the lab, the clinic and on the training field—for more than 40 years, and finally, it seems, people are listening. Lactate, it's becoming clear, is not ...
Cell & Microbiology
May 23, 2018
5
933
Cells in the body are wired like computer chips to direct signals that instruct how they function, research suggests.
Cell & Microbiology
May 24, 2019
1
4243
Researchers from The University of Nottingham have demonstrated how a species of flatworm overcomes the ageing process to be potentially immortal.
Cell & Microbiology
Feb 27, 2012
22
0
Since at least the 1920s, anecdotes and some studies have suggested that chimpanzees are "super strong" compared to humans, implying that their muscle fibers, the cells that make up muscles, are superior to humans.
Plants & Animals
Jun 26, 2017
11
514
Hummingbirds, native to North and South America, are among the smallest and most agile birds in the world. Often barely larger than a thumb, they are the only bird species that can fly not only forwards, but also backwards ...
Plants & Animals
Jan 12, 2023
1
408
Engineers at the University of California San Diego have developed a miniature device that's sensitive enough to feel the forces generated by swimming bacteria and hear the beating of heart muscle cells.
Optics & Photonics
May 15, 2017
0
1367
A team of scientists at Karolinska Institutet and Harvard University has taken a major step towards treatment for heart attack, by instructing the injured heart in mice to heal by expressing a factor that triggers cardiovascular ...
Biotechnology
Sep 8, 2013
0
0
Muscle (from Latin musculus, diminutive of mus "mouse") is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They are classified as skeletal, cardiac, or smooth muscles. Their function is to produce force and cause motion. Muscles can cause either locomotion of the organism itself or movement of internal organs. Cardiac and smooth muscle contraction occurs without conscious thought and is necessary for survival. Examples are the contraction of the heart and peristalsis which pushes food through the digestive system. Voluntary contraction of the skeletal muscles is used to move the body and can be finely controlled. Examples are movements of the eye, or gross movements like the quadriceps muscle of the thigh. There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
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