Millipede legs grow in an unexpected way, according to new research. Previously, it was thought that when a millipede molts (sheds its exoskeleton), it grows new segments on the end of its body without legs. Then after the next molt, the previously new segments re-emerge with fully formed legs attached. However, a team has found that new segments actually contain tiny bundles of legs, which appear as transparent protrusions before molting and then become fully formed afterwards. This discovery could help us understand how not only millipedes, but also other arthropods (invertebrates with jointed legs) grow.
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Source: ScienceDaily