How does amber preserve three‑dimensional scenes differently than normal fossils?
Amber is fossilized tree resin that hardens quickly and encases organisms intact, preserving soft tissues, fine structures like feathers and silk, and even behavioral snapshots (e.g., predation) in three dimensions rather than flattened impressions.
Why was the dinosaur tail in Myanmar amber significant?
It was the first discovery of dinosaur tissue (mummified skin and feathers) preserved in amber, allowing researchers to study feather microstructure and coloration and confirming the tail belonged to a non‑avian theropod juvenile.
What evidence shows parasites affected dinosaurs?
Researchers found a blood‑engorged tick clinging to a feather in amber (Dinocroton Draculae), demonstrating that blood‑feeding parasites fed on feathered dinosaurs much like ticks do on modern birds.
What behavioral insights did amber fossils provide?
Amber preserved direct behaviors: a spider attacking a wasp (including web strands and possible social tolerance), ants engaged in warfare, fungus infecting ants (zombie behavior), and a beetle with specialized structures for fungal farming.
What does the tiny crab Cretapsara athanata tell us about ancient habitats?
The fully preserved crab with gills and eyes, found in amber lacking marine sand, suggests it lived in a brackish or swampy environment and pushes back evidence of crabs leaving marine habitats by about 30 million years.