However, an adaptation desert tortoises have developed is to survive without water for much longer than us humans.
(an adaptation desert; have developed; tortoises) (an adaptation desert tortoises have developed; is; to survive without water for much longer than us humans) (an adaptation desert tortoises have developed; to survive; T:for much longer than us humans)
an adaptation desert an adaptation desert tortoises have developed an adaptation desert tortoises have developed
have developed is to survive
tortoises
to survive without water for much longer than us humans
T:for much longer than us humans