There are some reasons which could be mentioned:
1)Energy is lost as heat at each feeding level
2)Consumers who feed directly on plants have more energy for themselves than consumers feeding on other consumers. Indeed, energy again is lost in each level.
3)Feeding cattle is not productive, because energy must be transferred from plants to the cattle and then to people.
Answer:
I don't know the way they get babies
It depends on where you live, if daylight savings time is in your state or not.
If the shape of this unknown skull is long and skinny at the cheekbones, then it is most likely an Australopithecus afarensis one
