By CBS Baltimore Staff

BALTIMORE (WJZ) — This year’s breeding class of African penguins at the Maryland Zoo will be named after gemstones.

The first four hatchlings have been named! Meet Diamond, Pearl, Onyx and Topaz.

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So far, there’s been seven chicks this breeding season.

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Overall, the Maryland Zoo has hatched over 1,000 African penguin chicks.

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And if you’re wondering the reason behind the name theme, the Zoo said just like gemstones, African penguins are also precious and rare.

CBS Baltimore Staff