Mis eristab seda lihasööjat pakendist, on luude õhukottide tõendid, mida gloobne paleontoloog Paul Sereno on võtnud tõendina selle kohta, et Aerosteon ja kaudselt ka teised selletaolised teropoodid võisid omada linnutaolist hingamissüsteemi. Seetõttu pole ohtu seda kahjustada.
Fellers, Gary M. Our data suggest that at least a few lizards are probably more than 20 years old, and one lizard would be Ages of 20 and 30 years seem reasonable given the remarkably slow growth during capture intervals of more than a decade for five of the lizards which we estimated to be 20 or more years old.
Like other lizards, island night lizard growth rates vary by size, with larger lizards growing more slowly. In general, growth rates were somewhat greater on San Nicolas Island compared with Santa Barbara Islandand this increase was sustained gurney spin hagune all of the intermediate size classes.
The higher growth rate may account for the somewhat larger lizards present on San Nicolas Island, although we cannot discount the possibility that night lizards on San Nicolas are merely living longer. The high percentage of small lizards in the Eucalyptus habitat might seem to reflect a healthy population in that habitat, but the high proportion of small lizards appears to be caused by good reproduction in the s and substantially poorer reproduction in subsequent years.
The Eucalyptus habitat has dried quite a bit in recent years. There has also been an artrohi liigesed vaagnaravi in the proportion of large lizards in the Rock Cobble habitat at Redeye Beach.
However, there are has been some change in habitat with more elephant seals occupying the same area just above the high tide as do the night lizards. Southern alligator lizards and side-blotched lizards are both non-native on San Nicolas Island.
Neither lizard causes obvious harm to island night lizards, and management time and effort should.