The diagrams below show the development of the horse over a period of 40 million years. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
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The diagrams illustrate the evolutionary development of the horse, focusing on significant changes in the body
size
and bone structure of each foot over a span of 40 million
years
.
Overall
, the size
of horses
gradually increased, and their feet
evolved to become more robust and larger throughout this
period.
According to
the data, the earliest horses
, known as Eohippus, first appeared 40 million
years
ago. These animals were characterized by their relatively small size
, short tails, and slender feet
with four thin toes. Over the next 10 million
years
, Eohippus evolved into Mesohippus, which had a larger body and longer tail. Additionally
, their feet
had only three toes, with a prominent middle one at the time, and their mane began to develop.
Approximately 15 million
years
ago, Merychippus emerged. These creatures had a similar foot bone structure to that of Mesohippus, but their feet
were larger, and their manes were thicker. However
, the body size
of Merychippus was smaller than that of modern horses
, which were the largest and had the thickest manes. Eventually, the feet
of modern horses
fused together, forming robust hooves. Consequently
, this
bone structure contributed to their erect posture.Submitted by Mads on
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Vocabulary: Rephrase your introduction. Words match: 67%.
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Vocabulary: Replace the words size, million, years, horses, feet with synonyms.
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