Tenerife extinct. These specimens reached larger than usual sizes, because of a phenomenon called island gigantism. Among these species, the best known in Tenerife were: Nearly half of the island territory (48.6 percent), is under protection from the Red Canaria de Espacios Naturales Protegidos (Canary Islands Network for Protected Natural Areas). Of the 146 protected sites under control of network in the Canary Islands archipelago, a total of 43 are located in Tenerife, the most protected island in the group. The network has criteria which places areas under its observation under eight different categories of protection, all of them are represented
Gallotia 2010). Finally, the clade that colonized the younger western islands was likely to have originated from Lanzarote/Fuerteventura. This western island clade diverged into two groups, all of which colonized Tenerife, La Palma, La Gomera and El Hierro, leading to 1) a medium-bodied (e.g., "G. caesaris" from El Hierro) and 2) a large bodied "giant" species (e.g., "G. simonyi" from El Hierro) on each of these islands (note that "G. intermedia" from Tenerife belongs to the "giant" group, but present-day individuals are not that large). The giant species now exist, at best, in small relict populations, while "G. auritae" may be