Likely a tick

Ticks occur in vegetation and leaf litter, attaching to passing animals or people; this specimen’s habitat cannot be determined from the image.

Ticks feed on the blood of mammals, birds, reptiles, or amphibians, depending on species and life stage.

Ticks quest on vegetation for hosts and usually feed for hours to days. The rounded, swollen appearance may indicate it has fed, though the image alone cannot confirm this.

Some ticks transmit diseases to people and animals. Avoid handling with bare fingers; if it was attached to a person or pet, remove carefully and seek species-specific advice.