Hippopotamuses form groups called pods while in the water,where they spend their daytime hours,but forage solitarily on land at night.Mothers isolate themselves from the pod to give birth and for an additional 10-60 days.After this isolation period,they return to the pod,but raise their calves alone,with no help from the father or from other females.Adult hippopotamuses have no known predators,but young hippos are occasionally preyed upon by crocodiles,lions,and hyenas.Based on these facts,what is the most likely explanation for the diurnal group living of hippos?
A)the many-eyes hypothesis
B)locating food sources
C)the "selfish herd" concept
D)access to mates
E)reciprocal altruism

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The Answer of Hippopotamuses form groups called pods while in the water,where they spend their daytime hours,but forage solitarily on land at night.Mothers isolate themselves from the pod to give birth and for an additional 10-60 days.After this isolation period,they return to the pod,but raise their calves alone,with no help from the father or from other females.Adult hippopotamuses have no known predators,but young hippos are occasionally preyed upon by crocodiles,lions,and hyenas.Based on these facts,what is the most likely explanation for the diurnal group living of hippos?
A)the many-eyes hypothesis
B)locating food sources
C)the "selfish herd" concept
D)access to mates
E)reciprocal altruism

Hippopotamuses Form Groups Called Pods While in the Water,where They