They also have efficient lungs that can support oxygen for a long time and a digestive system that can digest food and release energy quickly.
(They; have; efficient lungs that can support oxygen for a long time and a digestive system) (efficient lungs; can support; oxygen; T:for a long time and a digestive system) (a digestive system; can digest quickly; food and release energy)
They efficient lungs a digestive system
have can support can digest quickly
efficient lungs that can support oxygen for a long time and a digestive system
oxygen T:for a long time and a digestive system
food and release energy