What are some creatures that look similar but are not related by blood?

Many photographers have always claimed to have photographed hummingbirds in China. But in fact, if the hummingbirds in the photos are species-identified, the ones they photographed are all large moths, and most of them are species of the genus Long-billed Hawkmoth. It stands to reason that the difference between moths and birds is still very big. For example, a moth has a pair of antennae on its head, six legs on its body, and scales on its wings; while a bird has no antennae, only two legs, and feathers on its wings. However, in appearance, the long-billed hawkmoth is very similar to a hummingbird in both size and shape. It is this shape that allows them to flap their wings quickly and hover steadily in the air like a helicopter to suck nectar. There are many animals that are not related but look similar. The arboreal hornbills of Asian rainforests and the toucans of American rainforests are examples. The hornbill belongs to the order Buddhism, and the toucan belongs to the order Asteriformes. The two are not related. However, both types of birds have a huge beak that is about the same size as their own body for eating fruits, and their body shapes are also relatively similar. Among mammals, Australia's marsupial mole is strikingly similar to South Africa's golden-haired mole. The marsupial mole is a marsupial like kangaroos and koalas, and the golden-haired mole is a placenta like a dog. The two are unrelated. However, as insectivores that live by digging in desert areas, they all have short, fat bodies and powerful palm-shaped limbs, as well as fur that is the same color as the desert. Their eyes are hidden under the skin and they have no vision. However, marsupial moles still have a koala-like snout, and the shapes of their teeth are also different, which shows the importance of teeth in mammalian taxonomy. Australia separated from other continents early, and placental animals had not yet evolved at that time, so there were no placental animals in Australia. This place has been a refuge for marsupials since ancient times. But later, sea lions swam over, bats flew over, and members of the rodent family Muridae crossed the ocean. These placental species multiplied and evolved in Australia. As a result, a branch of the rodents that arrived in Australia entered the desert. As evolution progressed, their hind legs became longer and longer, and they began to stand upright and jump like jerboas. Australia is indeed a place rich in miracles. There are no otters in Australia, but there are rivers suitable for otters to survive. As a result, a branch of the rodents that arrived in Australia began to adapt to semi-aquatic life, gradually increased in size, evolved webs between their hind toes, and changed the rodent habit of feeding on grass seeds and tree species to eating grass seeds and tree species. They ate fish, clams, shrimps and crabs in the water and lived like an otter. The above are all examples of convergence among terrestrial animals. There is even more convergent evolution of terrestrial plants, so that in the eyes of ordinary people, "plants all look the same" and so on.