35401
However , it is believed that some of these species may have bred in the islands in the past , and there are records of several sightings of leatherback sea turtle on beaches in Fuerteventura , adding credibility to the theory .
 Fuerteventura
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fuerteventura