1. 
   arribada
   An arribada is a mass nesting of turtles. Perhaps the most famous arribada was recorded on film by an amateur cameraman, Ing. Herrera, and shown by Dr. Henry Hildebrand in 1961. It recorded an estimated 40,000 Kemp's ridley females nesting on a single day at one beach in Mexico, Rancho Nuevo. In So ...
   Found op http://www.turtles.org/glossary.htm
   
   
2. 
   ARRIBADA
   when sea turtles nest "in mass", unique to the Olive ridley and on a smaller scale, the Kemp's ridley
   Found op http://www.seeturtles.org/1901/glossary-of-sea-turtle-terms.html
   
   

Tip: double click on a word to show its meaning.