Genetics is one determining factor when it comes to how large an animal can get. what might be another factor

There are various factors which effects the change inside the growth process or development of an organism inside a given environment. As there are two main factors which greatly affects the possibility of how large can a living being can get, which are as follows:

Explanation:

With the process of evolution there some changes occurred in the sequences of the different genetic materials and polymers inside the organisms parent, which lead it to evolving into something new and different. As organisms became more complex through changes in there genetic sequences.

The environmental factors includes the amount of food resources and the availability of shelter for them to survive in any conditions given. So, if there is an abundance of food and water along with other necessary resources it will cause the development of a living being much stronger and larger in body structure and mass.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

rocks and weathering-matching