Person wearing black gloves holding a ruler in the middle of a forest

Flock of birds flying over a tree with red flowers

Yellow aspen leaf lying on the ground surrounded by stones

Close up of a scorpionweed flower in the grass

Close up of a plant with white flowers and green leaves

Close up of a plant louse on a green leaf

Close up of a blackberry plant with green leaves in the foreground

Large tree in the middle of a forest

Yucca plant in the desert with a mountain in the background