Assertion details
Summary
elephant's ancestor begin evolving 1 toward smaller sizes
CAUSE
in response to limited natural resources 1
1 facets
Facet Type Facet cluster
in response to limited natural resources 1 cause
1 triples in cluster
ancestor begin evolving toward smaller sizes 1
1 source sentences
Source: Shown
Subject: Shown
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Facet: Shown
  • SRC As soon as the first full - sized prehistoric elephants arrived on , let 's say , the small island of Sardinia , their ancestors began evolving toward smaller sizes in response to limited natural resources ( a colony of full - sized elephants eats thousands of pounds of food every day , much less so if the individuals are only one - tenth the size ) .