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  1. All About the California Sea Lion - Reproduction | United Parks

    Males may not successfully reproduce until about nine years of age, when they attain full size and are able to compete for females. California sea lions tend to breed on the same section of beach year …

  2. Sea lion - Wikipedia

    Sea lion heart There are many components that make up sea lion physiology and these processes control aspects of their behavior. Physiology dictates thermoregulation, osmoregulation, …

  3. How do sea lions reproduce? - WildLifeFAQs

    Dive into the fascinating world of sea lion reproduction. Learn about their mating habits, gestation period, and courtship rituals.

  4. California sea lion - biology fast facts - Marine Mammal Research Unit

    Reproduction: Sea lions are a social ‘polygamous’ species consisting of groups of multiple females with their pups, where one dominant male will guard them and defend their territory, especially during the …

  5. Do sea lions have twins? - The Institute for Environmental Research …

    Nov 10, 2025 · Sea lions, those charismatic and vocal inhabitants of coastal regions, are generally known for their single-minded approach to reproduction. Unlike some mammals that frequently …

  6. California Sea Lion - NOAA Fisheries

    Apr 7, 2025 · Sea lions reach sexual maturity at 4 to 5 years old, but do not become socially mature until much older—they begin holding territories at around 9 to 12 years old.

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  7. Sea Lion Reproduction

    Feb 23, 2024 · Male Sea Lions are mature for reproduction at about 3 years of age. However, in most instances they will not end up mating until they are at least 8 years old.

  8. Can Sea Lions Have Twins? Understanding Their Reproduction

    Sep 2, 2025 · While extremely rare, sea lions can theoretically have twins, though the vast majority of births result in a single pup. Their reproductive biology and the ecological pressures of their …

  9. Sea Lions Like You’ve Never Seen Them Before! Reproduction ...

    In this wildlife deep dive, we explore everything from sea lion reproduction and parenting, to their hunting techniques, social structures, communication methods, and the threats they face in...

  10. Steller Sea Lion Reproduction, Alaska Department of Fish and Game

    Recent studies have found variable population trajectories of Steller sea lions spanning from the central Aleutian Islands west through the Russian Far East. Altukhov et al. (2015) suggested the varying …