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Volvox
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<p><i>Volvox</i> is a <a href="/facts/Polyphyly/o7lxKY74">polyphyletic</a> <a href="/facts/Genus/m8EFjSms">genus</a> of <a href="/facts/Chlorophyte/hRL4moDT">chlorophyte</a> <a href="/facts/Green_algae/3NlQ6pKF">green algae</a> in the family <a href="/facts/Volvocaceae/mUERHDag">Volvocaceae</a>. <i>Volvox</i> species form spherical <a href="/facts/Colony_(biology)/b5QfltwY">colonies</a> of up to 50,000 cells, and for this reason they are sometimes called globe algae. They live in a variety of <a href="/facts/Freshwater/xMP2TxwI">freshwater</a> habitats, and were first reported by <a href="/facts/Antonie_van_Leeuwenhoek/HQ9dH9oo">Antonie van Leeuwenhoek</a> in 1700. <i>Volvox</i> diverged from unicellular ancestors approximately <a href="https://geoltime.github.io/?Ma=200">200</a> million years ago. </p>