Four Lion Cubs Make Their Public Debut at Denver Zoo

Before the Denver Zoo Conservation Alliance opened to the public at 10 a.m. on Oct. 9, a crowd of at least 100 eager visitors had already gathered outside the gates, and the line was quickly growing as cars poured into the parking lot. Everyone was buzzing about the four new African lion cubs, which were being unveiled to the public for the first time.

“We’ve been coming two or three times a week, waiting for them to come out,” said Mindy after taking in the newborn lion cubs. “We’ve been counting down the days. We were really excited.”

DZCA members got the first look at the cubs at 9:30 a.m. The park had opened at 9 a.m. for members, and on the picturesque fall morning, a line immediately formed that stretched from the lion exhibit all the way back toward the zoo entrance.

DZCA clearly anticipated the excitement: snack stands, lion plushies and a statue of four lion cubs inside a Halloween pumpkin tailor-made for photo-ops were all set up near the entrance to the lion cub viewing to keep guests entertained. Not only are locals turning out to see the cubs, but national outlets like “The Today Show” also covered the debut, and the news has drawn visitors from around the globe.

“We are from Costa Rica, we brought our son to celebrate his birthday, and we enjoy visiting zoos in every city we travel to,” Ranae said. “My favorite animal is the lion, so I’m excited to see the cubs.”

The three females and one male, whose names are still to be announced, made their debut in Pahali Ya Mwana (place of the young), the east side of Predator Ridge. The cubs, born to mother Araali on Aug. 13 after a 115-day pregnancy, are expected to be outside daily from around 9:30 to 11:30 a.m., depending on weather conditions. 

At their unveiling this morning, the lion cubs bounded into view, playful and curious as a wall of cameras clicked away. Children squealed with excitement, parents craned their necks for a glimpse and the crowd erupted with delighted refrains of “They’re so cute!” and “Look how cuddly they are!” 

Before today’s debut, the cubs spent weeks tucked safely out of sight, bonding with their mother inside a specially designed den box that mimicked the secluded spaces lionesses seek out in the wild. There, they slowly built their strength while veterinary staff administered vaccines and monitored their growth until they were ready for the spotlight.

“Now that the cubs are here, we are enjoying listening to their noises and watching Araali as she navigates caring for all of them,” said Katelyn Stache, Assistant Curator of Carnivores. 

DZCA strives to make the zoo a space for conservation, education and community connection. For over a century, the zoo has evolved from a small attraction into a trusted community gathering place and a sanctuary for animals.

“We brought 51 fourth graders here to look at animal adaptations, and we found out that it’s the lion cub viewing,” said Lynne Dloph, a teacher in Boulder Valley School District. “We are very excited.”

The cubs’ mother, Araali, was born at DZCA in 2020, and their father, Usiku, arrived from Lee Richardson Zoo in Garden City, Kansas, in 2016.

“It’s been fun to watch her grow into that mothering role,” said Leah Swift, an animal care specialist with the carnivore team. “She has been an amazing mother, very attentive.”

The pair was recommended for breeding last year through the Association of Zoos and Aquariums’ (AZA) African Lion Species Survival Plan, a cooperative program designed to ensure the long-term survival of endangered species. 

“They’re going to enter into the species survival plan,” Swift said. “That is what keeps that genetic diversity really healthy across the board.”

Earlier this year, DZCA announced a new partnership with the Kyambura Lion Monitoring Project (KLMP) to protect lions in Uganda’s Queen Elizabeth National Park. The urgency is clear: Africa’s lion population has dropped to fewer than 22,000 individuals, a decline of more than 30 percent over the past 20 years.

DZCA supports KLMP by funding daily monitoring of lions, conducting annual censuses of lions, leopards and hyenas, and training local Ugandans in scientific monitoring techniques. This helps build expertise to protect these animals for generations to come.

“We work to pair animals based on genetic profiles,” explained Kubié. “It helps ensure long-term species survival, and, in some cases, allows us to reintroduce them into the wild.”

As an AZA-accredited institution, the zoo adheres to the highest standards of safety and animal care while participating in wildlife conservation. The debut of these cubs underscores DZCA’s mission to protect endangered species both locally and globally.

“Our hopes and dreams for African lions, across the board, are that we want to see those populations grow,” Swift said. “So that community-based conservation work really is the most important.” 

For now, the cubs are still in their tiny, playful stage, tumbling around the habitat and drawing gasps of delight. It’s a fleeting moment, one best experienced before they grow into the full roar of adulthood.

“Obviously, lion cubs are adorable and charismatic and really a big hit,” Kubié said. “They are getting people into our community by educating them, entertaining them, inspiring them and just building those connections.”

Visitors should note that westbound 23rd Avenue is closed from Colorado Boulevard to Steele Street due to construction, and driving to the zoo will be a bit longer than normal, but access to the zoo’s main entrance remains open. Zoo staff recommend arriving as close to 9:30 a.m. as possible—members at 9 a.m. and the public immediately afterward—since viewing hours could be shortened depending on how the mother responds to the crowds.