A caged Corvan gilvo.
The Corvan gilvo is a stick-like animal indigenous to the rainforests of Corvan II. Gilvos are uniquely suited to live in trees, as they closely resemble a tree branch. Their habitat was threatened by industrial pollutants on Corvan II, and by 2368, only 14 specimens remained.
Zek's Corvan gilvo.
That year, the USS Enterprise-D transported two gilvos to the protected planet of Brentalia. The gilvos were momentarily threatened by a fire that broke out aboard the ship during their transport, but Commander William T. Riker was able to save the animals. (TNG: "New Ground")
Another surviving gilvo was a pet of Grand Nagus Zek in 2369. (DS9: "The Nagus")
- The gilvo was a hand puppet designed by makeup supervisor Michael Westmore. In at least one scene in "The Nagus", when Quark is seen stepping out from behind the desk in his office, the head of one of the gilvo puppeteers can be clearly seen between a desktop Ferengi hemisphere and a small statue.