Detailed analysis of the fragment indicated that the

2019年3月30日

上海楼凤

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 bird’s reproductive system was not behaving normally. The eggshell consists of two layers instea

d of one as in normal, healthy bird eggs, indicating the egg was retained too long inside the abdomen, Bailleul said.

This condition occurs in living birds as a result of stress. Unlaid eggs may be coated with a second laye

r, or sometimes more, of shell. This abnormality has also been documented in sauropod dinosaurs, and in fossil and living turtles.

In addition, the eggshell was extremely thin, thinner than a sheet of paper, and did not have the proportions of a healthy egg, Bailleul said.

hina’s civil aviation regulator has temporarily stopped issuing airworthine

ss certificates for Boeing 737 Max 8s because of safety concerns, a move an expert said will bring huge economic losses to Boeing.

Two Boeing 737 MAX 8s have crashed in the last five months. All 157 pa

ssengers and crew members of a 737 MAX 8 operated by Ethiopian Airlines died on Mar 10, includi

ng eight Chinese nationals. In October, the same model of plane, operated by Lion Air, went down over the Java Sea, killing 189.

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