Pregnant women with IBD show heightened inflammation in vaginal mucosa
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Updates every hour. Last Updated: 25-Jun-2026 08:15 ET (25-Jun-2026 12:15 GMT/UTC)
For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of Tyrannosaurus rex to estimate how old the giant carnivores were when they died and how quickly they grew to adulthood. The best estimates from previous studies were that T. rex typically stopped growing at around age 25.