Happy 43rd birthday to the oldest male black rhino in the US

·1 min read
<p>Toshi celebrated his 43rd birthday at a zoo in Miami, Florida. </p><div class="cnn--image__credit"><em><small>Credit: Ron Magill/Zoo Miami / Zoo Miami</small></em></div>

Toshi celebrated his 43rd birthday at a zoo in Miami, Florida.

Credit: Ron Magill/Zoo Miami / Zoo Miami

Happy birthday, Toshi!

An endangered rhinoceros at a Miami, Florida, zoo turned 43 and is now the oldest male black rhino in the United States.

To celebrate Toshi's milestone, Zoo Miami staffers and volunteers made him a heart-shaped cake, frozen ice blocks with his name and sang together "Happy Birthday."

<p>Toshi celebrated his birthday with a special cake made for him.</p><div class="cnn--image__credit"><em><small>Credit: Ron Magill/Zoo Miami / Zoo Miami</small></em></div>

Toshi celebrated his birthday with a special cake made for him.

Credit: Ron Magill/Zoo Miami / Zoo Miami

Toshi was born in Hiroshima, Japan, in 1977 and moved to Miami in 1983 as part of a breeding recommendation, according to Zoo Miami.

He produced at least five offspring over the years but he's now enjoying retirement and some good back scratches from staffers at an off-exhibit area of the zoo.

<p>The herbivore has lived at the Miami zoo since 1983.</p><div class="cnn--image__credit"><em><small>Credit: Ron Magill/Zoo Miami / Zoo Miami</small></em></div>

The herbivore has lived at the Miami zoo since 1983.

Credit: Ron Magill/Zoo Miami / Zoo Miami

Toshi is a really a senior citizen of the zoo. The life span of black rhinos ranges from 35 to 40 years, according to the African Wildfire Foundation.

These rhinos are considered critically endangered. There are only about 5,000 black rhinos, the smaller of the two African rhino species, in the world, according to the World Wildlife Foundation.