Final answer:
The Chupacabra, named by Silverio Pérez, is an alleged creature known for supposedly preying on goats and is a subject in the field of cryptozoology.
Step-by-step explanation:
The ungulate-loving cryptid named by Puerto Rican radio DJ Silverio Pérez is known as the Chupacabra. This creature is part of cryptozoology, which refers to the study of animals that are rumored to exist but have not been scientifically proven.
Cryptozoology is often considered a pseudoscience because it relies heavily on anecdotal evidence and lacks the rigorous scientific methodology typically seen in the study of zoology. The name 'Chupacabra' itself means 'goat-s*cker' in Spanish, reflecting the monster's reputation for ostensibly attacking and drinking the blood of livestock, particularly goats.