Two lion cubs born 10 days ago at the San Diego Zoo's Safari Park will be on display at the Safari Park animal care center on a limited basis.
The unnamed male and female, born Dec. 6 to Oshana, are being bottle-fed 30-40 milliliters of kitten starter formula every two hours. That amount will increase as they grow.
After their 8 a.m. feeding, the male weighed 5.5 pounds, and the female 3.5 pounds, according to the zoo.
Keepers say the female cub is very feisty, while the male cub is calm.
Both are vocal when they want something, such as food or attention from animal care staffers. They also call for each other when separated for feedings or measurements.
The zoo said the cubs can be viewed at the Safari Park between 10 a.m. and noon, but like adult lions, they can sleep about 20 hours per day.
The cubs were the first born at the park since 2007, according to the zoo.