One supposed evidence of humanity's common lineage with primates, such as chimpanzees, is the similarity of our fingerprints. Take, for example, this post from the Facebook page "Science Page". The irony of this argument, however, is that while it looks excellent to the untrained eye, any expert in dactyloscopy (the study of fingerprints) would soon spot a rather significant flaw. Namely, it backfires.
See, while it is claimed that our closest living relatives are chimpanzees, our fingerprints are not quite as similar as they are claimed to be. A forensic analyst will be able to tell whether a fingerprint was left by a human or a chimpanzee, simply because although they are similar, they do have noticeable differences.
First, although humans and primates do share three common fingerprint patterns (arch, loop, and whorl), these patterns show up in very different frequencies. Loops are significantly more common in humans, whereas whorls are more frequently observed in primates. The ridges in human fingerprints also have a higher density than in chimp fingerprints. Since chimp ridges are significantly finer, they also have about twice as many per centimeter. Yet another difference is the tent-like pattern chimps display on the arches of their fingers, which is absent in humans. Ultimately, there is a significant difference between chimp and human fingerprints that even the untrained eye would be able to spot, albeit with some effort, if asked.
Koalas, on the other hand (no pun intended), have fingerprints which are significantly more difficult to distinguish from our own. While they are slightly different, they are almost identical, to the point where crime scene investigators would struggle to tell them apart. This renders the fingerprint argument utterly useless for Evolutionists, as our supposed common ancestry with koalas allegedly split 70 million years ago. Why, then, are our fingerprints so similar?
The answer is the same as "why do so many vehicles have similar steering wheels?" Common design implies common designer, and, of course, common purpose. Fingerprints are an excellent feature for increasing grip. Humans, chimps, and koalas, all use their hands for similar purposes. We all use our hands to grip things, such as food, tools, and even climbing surfaces. Fingerprints are an excellent design feature, spread across awesome designs, in ways that have Evolutionists scratching their heads. Therefore, they are an awful argument for suggesting we are merely animals.
And this is just as well, because aside from the fact we are not merely animals, we all know it, and we all dread a world in which we didn't. Calling someone an animal is an insult, and telling them to act like animals is the worst possible advice you can give. Animals, aside from not being capable of our level of reasoning, are also significantly lacking in the moral department. Animals can be violent murderers. Animals kill (and sometimes even eat) the offspring of their own species. Animals enjoy violent gang rape. Animals have no concept of consent, or even an age of consent. Animals will, without mercy, wipe out other species. Animals have sex in public places, and poop in them too. Animals will steal from each other. Animals target weak and defenceless victims. Animals will abandon even their own young. Basically, animals are a terrible moral source. There's a reason we say of evil people "you're acting like animals."
But here's the scary thing: Every single one of us, while we know we are greater than animals, also knows we often act like them. See, when God created us, He didn't just drop us in the jungle and hide. He's been with us for 6,000 years, convicting us even from our youth. We instinctively recognise design, and even have a basic, if significantly degraded, understanding of His moral laws. We know there is a God judging us, and we know we've violated His Holy standards.
But here's a thing we can only know because He has revealed it to us: He offers mercy. The sins we have committed do not have to result in the punishment we deserve, because they have instead resulted in the punishment of the only Man who never committed any sin: Jesus Christ, the Son of God in flesh. 2,000 years ago, God's plan of salvation reached its conclusion when Jesus was born of a virgin, lived a perfect life, died on the cross for sin, and rose again on the third day. This all paves the way for our salvation. All who come to Jesus in good faith will effectively "swap verdicts" with Him. Therefore, confess Him as Lord, and believe God raised Him from the dead, and you will be saved.