Simplify the following text for a Grade 10 native English-speaking person.
Original: By studying the types of melanosomes and comparing them with those of modern birds , the scientists were able to map the specific colors and patterning present on Anchiornis when it was alive .
Simplified: By studying the melanosomes and comparing them with those of modern birds , the scientists were able to map the colors and patterning present on Anchiornis when it was alive .