No, scientists do not say that humans evolved from chimpanzees. The idea that humans evolved directly from modern-day chimpanzees is a common misconception about the theory of evolution. In reality, humans and chimpanzees share a common ancestor that lived millions of years ago.
According to the theory of evolution, all living organisms, including humans and chimpanzees, share a common ancestry and have evolved over time through a process of gradual changes and natural selection. This means that humans and chimpanzees are related, but they have followed separate evolutionary paths since their common ancestor.
The scientific evidence, including fossil records, comparative anatomy, and genetic studies, strongly supports the idea of a common ancestry between humans and other great apes like chimpanzees, bonobos, gorillas, and orangutans. The genetic similarities between humans and chimpanzees, in particular, are striking, indicating a relatively recent common ancestor in evolutionary terms.
It's important to understand that evolution is a complex process, and it doesn't involve one species evolving directly from another in a linear fashion. Instead, it's a branching pattern where different species emerge from common ancestors over time. So, humans and chimpanzees share a common ancestor in their evolutionary history but are distinct species that have evolved separately.