This sequence likely belongs to a bird rather than to a dog, snake, or horse.
DNA stands for deoxyribonucleic acid and it is essential in genetics and biology because it composes genes. Moreover, DNA is expressed as a sequence of four bases:
Considering all living organisms share a common ancestor and modern species evolved from older species, a similarity in DNA shows organisms are genetically and phenotypically similar.
In the case of the penguin and the fossilized species, the DNA sequence is almost identical. Due to this, this organism should be very similar to the penguin, and therefore, the most likely organism is another bird.
Learn more about DNA in: https://brainly.com/question/264225