Yersa was an Argelian exobiologist in the 23rd century.

In 2267, she traveled to Sherman's Planet on a freighter carrying an emergency replenishment of quadrotriticale. After assisting Cyrano Jones in his investigations into tribble reproduction, she transferred to space station Deep Space Station K-7, and from there began to conduct field studies on planet Iota Geminorum IV. Her research discovered how tribbles were affected by their natural environment, in particular their reproduction rate. (TOS short story: "The Last Tribble")

Archer bio Defiant This article is a stub relating to a character. You can help our database by expanding on it.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.