CASE 1
A mule is the offspring of a male donkey and a female
horse. In contrast, the hinny is the offspring of a male
horse and a female donkey. The mule is easier to breed
and larger in size than the hinny. For these reasons, the
mule became an important domesticated animal.
However, both mule and hìnny are sterile.
Analysis 1:
1. Is the mule a separate species from the horse and
donkey?
2. Are mule and hinny the same species?
3. How many species of animals were described in this first case?
Answers & Comments
Answer:
1.All you need to know is that animals like horses, donkeys and mules are entirely separate species. However, they have all evolved from the same family called equidae. These species all belong to a sub-family of animals called equus.
2.The hinny, or hinney, is also called a mule. However, the hinny is the hybrid cross between a male horse (stallion), and a female donkey (jenny, or jennet). The hinny is different from a mule in very subtle ways. For instance, the hinny is a somewhat slower and more meticulous mover than the mule.
3. 8.7 million
8.7 millionMost precise estimate yet suggests more than 80% of species still undiscovered. There are 8.7 million eukaryotic species on our planet — give or take 1.3 million.
Explanation:
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