Age of bacteria from amber

Article Abstract:

The claim of the successful culturing of 25 million-year-old bacteria taken from a fossilized bee is disputed. The suggestion that knowledge of the entire diversity of Bacillus sphaericus is necessary to claim ancient origin is rejected as impossible. Corrections to the DNA analysis are accepted.

Analysis, Cultures (Biology), Amber

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Were dinos cold-blooded after all? The nose knows

Article Abstract:

Paleontologist John Ruben believes dinosaurs were cold-blooded because they lacked a respiratory terminate, a tiny section of the nose that regulates heat loss. Unlike circumstantial evidence for warm-bloodedness in dinosaurs, most scientists believe terminates are a prerequisite for endothermy.

Dinosaurs, Nose, Poikilotherms, Ectothermy

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Have 25-million-year-old bacteria returned to life?

Article Abstract:

Raul Cano and Monica Borucki claim to have revived 25-million-year-old bacteria found in a bee trapped in amber from the Dominican Republic. Trying to extract ancient DNA, they fed nutrients to bacterial spores and obtained living bacteria similar to bacteria in modern Dominican bees.

Living fossils, Fossil insects

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