After examining the fossil record, scientists have determined that scorpions today are much smaller than their extinct ancestors. For example, Jaekelopterus rhenaniae, a giant scorpion species that lived 255 million to 460 million years ago, was 2.5 meters long. Which of the following conclusions is supported by this information?
Scorpions have changed as a result of natural selection.
Scorpions have changed as a result of natural selection.
Scorpions in the fossil record are smaller than their descendants are.
Scorpions in the fossil record are smaller than their descendants are.
Scorpions living today have increased their numbers since they first appeared.
Scorpions living today have increased their numbers since they first appeared.
Scorpions do not appear in their original state in the fossil record.
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After examining the fossil record, scientists have determined that scorpions today are much smaller...
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