Male rattlesnakes “dance” in a show of strength designed to win females. A cholla cactus uses its prickly form of defense and the passing javelina to populate new parts of the desert. Meanwhile, the javelina’s tiny young are threatened by a hungry coyote.

Buoyed by new job prospects and fresh hope, Tommy calls Christy again to ask her not to marry Frank. Christy has her own idea of how to resolve the situation, and comes to Pirate Burger to discuss her idea with Tommy.

French DJ David Guetta, British pop singer Anne Marie, and American rapper Coi Leray collaborate on this version of "Baby Don’t Hurt Me," which was a smash hit from the Trinidadian-German singer Haddaway in the early 1990s.

This final segment is about two fun expressions: "to kick the can down the road" and the currently popular expression, "Delay, delay, delay." Then Sigrid sums up parts 3 and 4.

Despite the intense heat, a female hummingbird must adapt her diet and work non-stop to feed the young in her nest. The rattlesnakes are breeding, and the victorious male claims its hard-won mate.

Sylvia is willing to talk about her Alzheimer's diagnosis, even though she struggles to form sentences and find the right words.

The heat of a scorched riverbed is too much for some animals, but the rare and venomous Gila monster is still active and hunting for prey. Meanwhile, the untiring hummingbird mother will feed her remaining chick until it finally fledges.

Sabrina Carpenter is an American singer and actress who first rose to fame in the series Girl Meets World and the adventure comedy film Adventures in Babysitting.