What is krotalos you might be asking? Well....
Krotalos is plural for Crotalos in Spanish or Crotalus in English! I just replaced the C with the K since Crotalus comes from the Greek Krotalon which means "rattle."

Crotalus is the longest and most poisonous Serpent in North America that belongs to the pitviper genera. Covered in overlapping scales and armed with poisonous fangs, this baby is one killer snake. You might know this serpent by a more common name. The rattlesnake. Several species are known. 29 to be exact. They tend to retreat from humans but when cornered, well, you guess what can happen.