Koalas might not seem to have a lot in common with us, but if you were to take a closer look at their hands, you'd see that they have fingerprints that are strikingly similar to humans.
Parrots may be associated with pirates, but it turns out African gray parrots are nothing like the infamously greedy, treasure-seeking criminals.
Prairie dogs are quirky creatures for a number of reasons: They're giant rodents, they dig massive interconnected underground homes, and they kiss.
Humpback whales, orcas, and human females are the only mammals that undergo menopause.
If the name didn't make it obvious enough, let's be clear: Chinese water deer really like water. These critters have been known to swim for up to seven miles before getting tired.
That's right. The bat is the only flying mammal. While some people may be tempted to put flying squirrels on the list, the truth is those guys can only glide for short distances.
Narwhals are unlike most other whales because they have what appears to be a giant tusk. But that's not actually a tusk at all—what you're seeing is a tooth.
The COVID pandemic has really underscored this point: Scientists have documented multiple instances of human pathogens like rhinoviruses and coronaviruses finding their way into gorillas and other great apes.
Cats have been hanging around humans for thousands of years. Guinness World Records reports that we've been domesticating cats for 9,500 years.
And that's not all. These guys can measure as long as three Greyhound buses, and weigh up to 300,000 pounds. In fact, the blue whale remains the largest animal on Earth.