Big Green Machines
- Episode aired Apr 28, 2018
![Jack Hanna's Wild Countdown (2011)](https://m.media-amazon.com/images/M/MV5BMjQwNjE1Nzk4OF5BMl5BanBnXkFtZTgwNDAxNjQ2ODE@._V1_QL75_UY281_CR93,0,190,281_.jpg)
Jungle Jack counts down six voracious herbivores around this planet.Jungle Jack counts down six voracious herbivores around this planet.Jungle Jack counts down six voracious herbivores around this planet.