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If you dare venture out, it’s a good idea to use the buddy system and be versed in wilderness first aid.

Zabow suggested using a buddy system in which friends monitor one another for symptoms of heat exhaustion, including heavy sweating, dizziness, and nausea, and leave early to get help if needed.

Critically, she discovered that another polymerase, called polymerase delta, uses a buddy system with polymerase theta to assist it in this repair pathway.

“Now you don’t even have the good old buddy system of two co-workers keeping an eye out for each other.”

The park recommends swimmers and boaters use the buddy system and wear life jackets.