October 23, 2017

It is being reported that CBS has cancelled its summer thriller Zoo. The move comes one month after the conclusion of its third season, but was somewhat expected after its ratings performance during its most recent run.

The show premiered in 2015 with a successful debut that saw it rank as the summer's most-watched scripted series. While viewership tapered off in Season 2, it wasn't until this season that ratings fell to levels that put it in danger of not continuing. Many viewers reported tuning out this time around after the story took a jump into the future with uneven storytelling and off-putting hybrid animals.

Zoo follows the rise of a mysterious wave of violent animal attacks around the world against humans without any explanation. A young zoologist takes notice that the strange behavior is escalating to become more coordinated in nature, and he soon finds himself at the center of a race to piece together the bizarre pandemic endangering all mankind.

Zoo's cancellation bares similarities to that of Under the Dome, in that both are CBS shows that broke out with successful summer outings and ended up airing for three seasons and exactly 39 episodes.