Jovian (Los bebés ya no vienen de París, ahora vienen de Júpiter, 1982)

Jovians are an unnamed humanoid species from Jupiter, with the strange trait of shrinking instead of growing.

Biology
Jovian adults are Human-like humanoids, although they are only about a meter tall, with their proportions scaled to their size. Males and females are known to have similar appearances, but females are known to have greenish, curly hair in an afro-like style. However, Jovian infants are considerably larger than Jovian adults, standing taller than most Humans. While Jovian infants act like Human babies, wanting attention, care, and play, they are considerably more dangerous, as they possess more strength than a Human adult. Strangely, at least by Human standards, Jovians do not grow as they age, but rather, shrink. It is unknown when they start or stop shrinking. By Human standards, birthing an infant over twice the size of the parent would be impossible, leaving a few possibilities: Jovians conceive and birth children before shrinking, possibly after a period of "normal" growing with age to accommodate a large infant, or Jovian reproduction is not like Human reproduction, as in possibly being through eggs or some other means that does not involve the infant developing within a parent. Jovians also age slower than Humans, aging one year in 11 Earth years, thus making it likely that their lifespan is 11 times longer than that of Humans.

Culture and society
Little is known of Jovian society, but it is known that at least some Jovians have direct, friendly relations with Humans, enough to be willing to let Humans look after their infants for some time. Jovian infants, due to their size, sleep in large cribs and play with oversized toys, usually clothed in yellow one-piece bodysuits and bonnets. Jovian adults wear green tunics with light green bands around their elbows, and a greet others with a gesture like a Roman salute. Adult Jovian males wear green pants with two light green bands and gold boots, while adult Jovian females wear green skirts in place of pants.

History
At some point in the late 20th century, a Human man somehow met a Jovian couple, likely during a visit to Earth from the Jovians, befriending them. In the 1980s, the Jovian couple asked the man to take care of their infant son for a time, sending their son to Earth and providing the Human with a crib and baby toys of appropriate size.

Appearances

 * Chespirito s03e19a "Los bebés ya no vienen de París, ahora vienen de Júpiter" (1982)