tissue

To test these theories, the researchers caught and analyzed hundreds of fish, using micro-CT scans and tissue samples to document tenaculum development.

After the death of the host, the worm feeds on the multiplying bacteria, as well as on the insect tissue, and lays eggs.

They then compared these samples with brain tissue from mice genetically engineered to develop Alzheimer's-like amyloid buildup.

"For severe osteoarthritis, where the joint is physically destroyed and cartilage is already gone, radiation will not regenerate tissue," Dr. Kim said.

This technique allowed the scientists to monitor how quickly those amino acids were integrated into muscle tissue.