Published on: 2025-07-10 12:00:11
It’s been more than 160 years since Archaeopteryx first shook up science as the missing link—part reptile, part bird—and indicated that today’s pigeons and parakeets are the feathery descendants of dinosaurs. But despite decades of research, there’s still more to learn. Case in point: a newly described fossil, nicknamed the Chicago Archaeopteryx, may be the most detailed and revealing specimen yet. “The most important findings all center around rarely preserved soft tissues. For the first time
Keywords: archaeopteryx dinosaurs fossil soft tissue
Find related items on AmazonPublished on: 2025-09-23 08:29:49
Jaiwen Hsu was an active 11-year-old when he developed pain in his left knee that forced him to sit out a few soccer games. What his parents thought was a sports injury turned out to be osteosarcoma, a type of bone cancer. He started chemotherapy, which doctors warned could result in infertility. Hsu hadn’t reached puberty yet, so sperm banking wasn’t an option. His parents enrolled him in a study that was collecting and storing immature testicular tissue, and the sperm-forming stem cells in th
Keywords: cells hsu sperm stem tissue
Find related items on AmazonPublished on: 2025-10-10 19:35:40
Fossilized feathers discovered 136 years ago are still revealing new secrets. Researchers found that the volcanic rock preserving the feather holds microscopic details preserved within the fossil. The team’s research—published today in Geology—found that the feathers are preserved in zeolite, a mode of preservation that hasn’t been reported for soft tissues until now. “Fossil feathers are usually preserved in ancient mudrocks laid down in lakes or lagoons,” said Valentina Rossi, a researcher a
Keywords: fossil preserved soft tissues vulture
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