On your second visit to Puerto Rico, use the Jeep to corral three of the spotted goats at Snaggletooth Rock (located at the center star).
Once all three spotted goats are in the grass circle, leave the jeep and meet the goat herder, who has set up the large crate and lock so you can catch the chupacabra. Or at least try to.
Yes, you can find proof of The Jersey Devil, Bigfoot, Nessie, and the Chupacabra. (see related question)
When you first start the island and you get the paper about Mews needing the evidence of ONE cryptid to get your reward, you end up needing to search for 4: Bigfoot, the Loch Ness Monster, the Chupacabra, and the Jersey Devil.
You can't. But its tooth is proof enough that it is an unknown species.
You will search for evidence in four locations around the globe where cryptids have been observed. As you discover possible clues, you examine them to see if they are genuine. Nessie - at Loch Ness Yeti - in the Himalayas Chupacabra - in Puerto Rico Jersey Devil - in New Jersey (see solution at the related question)
you find the chupacabra in puerto rico. you have too gather 3 spotted goats were the huge bones are then just wait and see
Since the monks won't let you test the Yeti scalp, you have no proof. Once you have the lantern and the footprint photo, you can find nothing at the Himalayas. However, once you prove the other three cryptids (Nessie, Chupacabra, and the Jersey Devil), Mews will send you in pursuit of the similar creature, Bigfoot.
You need a photo of the actual Nessie, a tooth from the chupacabra, and egg shells from the Jersey Devil. (see the related questions below)
There are 3 you have to prove: Nessie (Loch Ness) Chupacabra (Puerto Rico) New Jersey Devil (New Jersey) You can't get what you need to prove the Yeti, so you are sent to find Bigfoot.
You find him in the lab, where you first talked to him. From the helipad. it is just to the left.
To win the island, you must find the proof that confirms the existence of three legendary cryptids : Nessie of Loch Ness, the Chupacabra, and the Jersey Devil. Then you have to rescue the 4th creature, Bigfoot, from the evil plans of Gretchen Grimlock. (see related solution question)
You will search for evidence in four locations around the globe where cryptids have been observed. As you discover possible clues, investigate them, or bring them back to see if they are genuine. Nessie - at Loch Ness (get a camera and matches) Yeti - in the Himalayas (get a lantern) Chupacabra - in Puerto Rico (get some bolt cutters) Jersey Devil - in New Jersey
Go to Porto Rico. Talk to the man with the moustache by the jeep. Ask him where you can find the chupacabra. Then say your not scared. he will let you borrow his jeep. Go to the city north of the city you started at. Deliver the seeds. Walk left until you see a red tuff of fur on a fence. Click it. Go to Mews.