Frogs mating at Irati Valley
The mating starts springtime, still snow is remaining
Nevertheless, the mating take usually place in flooded lands
The female is generally bigger than the male
Clasping his arms around the female, the male causes the release of the eggs
Croaking call notes, the males attrack a lot of females
The "amplexus" or sexual embrace lasts up to 45 minutes
The color of the skin helps the frogs to be unnoticed in a very defenseless moment
One male generally fertilizes more than one laying, up to three or four
A gelatinous membrane covers the eggs, protecting them from predators
In many species, parents abandon the fertilized eggs
The grubs will remain in the water until finishing the metamorphosis