Lizards
are quite unique in the fact that they are cold-blooded.
Lizards need to regulate their body temperature through
their external environment, as they do not have the
biological means to do so internally. This is why you
need to supply basking spots and ranges of temperatures
when keeping pet lizards.
The ventricles in a lizards heart share oxygen
back and forth in a constant exchange, but the division
of the ventricles vary. However, the hearts atrium is
always seperated into two chambers; left and right. |