This question is regarding climate change killing elephants

Explanation:

Climatology & Biology

Climatology (from Greek κλίμα, klima, "place, zone"; and -λογία, -logia) or climate science is the scientific study of climate, scientifically defined as weather conditions averaged over a period of time.

&

Biology is the natural science that studies life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution. Despite the complexity of the science, certain unifying concepts consolidate it into a single, coherent field.

So if we understand the way elephants work through biology then we can understand how change in temperature and weather can affect them

they are known to reach a speed of 21 miles per hour

the awnser is d i think