National Geographic kertoo ihmis-eläin hybrideistä.
For example, faulty human heart valves are routinely replaced with ones taken from cows and pigs. The surgery—which makes the recipient a human-animal chimera—is widely accepted. And for years scientists have added human genes to bacteria and farm animals. -- What's caused the uproar is the mixing of human stem cells with embryonic animals to create new species.
Wiredin artikkeli Theo Jansenin tuulirobottieläimistä.
"They have a food source in the wind so they can store energy and use it later on," said Jansen. "The downside is that they might have to wait for days, for the wind hopper to move on and on and then be able to move for maybe five minutes. They are just like snakes. Snakes also lie in the sun for days digesting their food. On the beach the animals have to catch the wind and wait for a long time before they have enough wind in their stomach to go for a walk."
Uutta luuta voi tehdä villasta.
The innovation has created a material based on keratin - a protein extracted from wool - that looks set to revolutionise bone surgery. Bones damaged by trauma or tumours are currently repaired using bone chips harvested from elsewhere in the body - a process that causes its own complications - or using synthetics such as titanium, which do not promote bone recovery. The new material is strong enough to form a structural repair, but is gradually absorbed by the body and encourages fresh bone to grow back.
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