They sat down to rest in their shade and ate some cactus fruit.
Its flowers are yellow to red-orange and appear atop the cactus fruit during the summer months.
It also seeks out cactus fruit for consumption.
The cactus fruit is consumed as a traditional medicine and food in Mexico.
It was probably a reaction to unripe cactus fruit.
Young larvae are gregarious and prefer to feed on cactus fruit.
The two took extreme measures, including licking rocks, eating cactus fruit, even drinking their own urine.
A number of wild plants there harvested including mesquite beans and cactus fruit.
Then he ate his evening meal - dried meat and cactus fruit.
Some cactus fruits are brightly coloured and good to eat.