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The body mass of the leopard frog (Rana pippiens), is twice that of the cuban tree frog (Osteopilus septentrionalis), yet the tree frog jumps twice...
The body mass of the leopard frog (Rana pippiens), is twice that of the cuban tree frog (Osteopilus septentrionalis), yet the tree frog jumps twice as far. As we have learned, jumping animals that stay in contact with the ground over a longer period of time have the opportunity to generate more kinetic energy before they lift off. So, perhaps this difference in jumping has something to do with contact time. If you assume that the frog are anatomically similar and follow isometric scaling, by what factor is the contact time of one species more than the other? Does this help explain the high performance of the tree frog?
Answer The leopard frog has a contact time that is 1.78 (i.e. 78 % longer) that of the cuban tree frog. This does not help explain the disproportionately long jumps generated by the tree frog
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