Opossum

A total of 17 species of opossum can be found in Paraguay. Two research interns Fionne and Monique spent their 3 months at Para La Tierra carrying out an opossum project comparing opossum numbers at different heights. They sampled the Atlantic forest, Transitional forest and the Cerrado habitats. 

Sherman traps for catching opossum 

On-ground, off-ground and in the canopy- traps were set and baited with a mix of peanut butter, dough and vanilla essence. Off-ground and canopy traps were set on a small wooden platform, the latter being raised and lowered using ropes hung in the tree. 

Traps were checked daily using a stick to carefully prise open the door to check for inhabitants. Giant locust, rats, lizards and even birds were found in the traps on occasion, and some times an opossum.

Once confirmed to be an opossum, the trap is emptied into a clear plastic bag for inspection and weighing.

Large eyes for night vision, prehensile tails for gripping on branches, and sharp teeth make this opossum well equipped for hunting it's insect prey.

Some of the smaller species of opossum found in Paraguay can only be identified by their dentition so taking pictures of their mouth was crucial. 

After being sexed, photographed and measurements completed, the opossum are micro chipped in case of future recapture and finally released. 

Presented, filmed and edited by Dr Jonny Miller with camera assistance from myself - The video below introduces the cute but ferocious agile gracile opossum.