It's difficult to definitively say which animal is closest to human intelligence, as intelligence is complex and can be measured in various ways. However, chimpanzees are often considered to be the most intelligent non-human animals.
Chimpanzees share approximately 98.7% of their DNA with humans, and they exhibit remarkable cognitive abilities. They can use tools, solve problems, understand complex social dynamics, and even demonstrate self-awareness.
Other animals that display high levels of intelligence include:
* **Dolphins:** These highly social creatures have complex communication systems, problem-solving skills, and the ability to recognize themselves in mirrors.
* **Elephants:** Elephants possess strong memories, empathy, and sophisticated communication skills. They also exhibit complex mourning rituals and demonstrate self-awareness.
* **Crows:** Crows are known for their intelligence, problem-solving abilities, and tool use. They can even plan for the future and recognize individual humans.
While these animals exhibit impressive cognitive abilities, it's important to note that human intelligence is still unique and highly developed. We possess a complex language, abstract thought, and a capacity for creativity that sets us apart from other species.