Elmer and Lima were both born at the zoo themselves — Elmer in 2016 and Lima in 2019 — and they became a couple in fall 2021 during the current breeding season.
The zoo said Elmer was given his name “because the egg he hatched from was accidentally damaged by his parents and the animal care team repaired it using Elmer’s glue.”
To avoid this kind of unintentional damage, the zoo said it sometimes transfers an egg from its biological parents to foster parents, who then care for it while the other couple incubate a dummy egg.
The egg Elmer and Lima hatched was initially laid by heterosexual pair Poquita and Vente, but after the zoo team detected a viable embryo inside, they transferred it to the first-time dads.
“At our first health check when the chick was five days old, it weighed 226 grams (8 ounces),” zoo director Ted Fox said in a press release. “It continues to be brooded and cared for by both Elmer and Lima, who are doing a great job.”
Fox said not all parents were good at hatching eggs, with some breaking the egg, not incubating it correctly, or fighting over who incubates it at what time.
“That’s how we evaluate who will be good foster parents — and Elmer and Lima were exemplary in every aspect of egg care,” Fox added, saying the couple’s story would “help people of all ages and backgrounds relate to animals.”
At least two penguin pairs have broken their eggs in the past, and the fact that Elmer and Lima “built a nest and defended their territory” was a sign that they could be good parents, the zoo’s press release added.
Rosamond Gifford Zoo has 28 Humboldt penguins in its current colony, having begun with 18 — and has hatched a total of 55 chicks, many of which have been transferred elsewhere.