Since 1999 the Butaan Project has been studying the rare, endangered, and unique fruit-eating monitor lizards of the Philippines.  Butaan is just one of several races of frugivorous monitor lizards in the Philippines ("Pandan Biawak"), all of which are of at least as great a conservation concern as the Komodo dragon, but receive virtually none of the attention. Pandan Biawak occur only in lowland dipterocarp forest. The first species (Butaan) was discovered in 1845 and not seen alive by a scientist until the late 1970s. The next species (Mabitang) was discovered in 2001. Other species remain undescribed, and some may have gone extinct without ever having been recognised.