Fred was killed on an Ice Age mating ground. Scientists now know quite a bit about the animal's life and travels.
Isotopes of elements like oxygen and strontium have natural abundances that differ across time and location. Because those elements end up in soils and waterways, living things consume them, offering researchers a way of tracking the movements of ancient beings. Because mastodon tusks are really elongated teeth, the same scientific techniques can be applied to them.
“There’s this growth of home range as the animal goes through adolescence,” Miller said. “As [an adult] male, it’s doing something very, very different than it was when the young male was in closer proximity to the maternal herd.” Fred died nearly 100 miles from its home territory, indicating the large range of the 8-ton adult.
Like elephants, female mastodons had long gestation periods of about 22 months. Females would give birth to big baby mastodons in spring, to ensure their young could take in as many nutrients as possible before the next winter set in.Males also would try to find mates in the spring—hence how the recently studied mastodon ended up in what is today northeastern Indiana.
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