Dein Suchergebnis zum Thema: have

How Do You Weigh a Hummingbird? | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/how-do-you-weigh-hummingbird

See Spot. He’s a little ruby-throated hummingbird with a big personality. Spot is also super smart and has mastered scale training. Learn how Bird House keepers came to weigh him and get tips on attracting hummingbirds to your backyard!
From there, we record the birds’ measurements and keep track of whether they have

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Featured Creature: Clouded Leopard | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/featured-creature-clouded-leopard

Say hello to Ariel! This sweet and social clouded leopard just joined the Smithsonian Conservation Biology Institute’s breeding program. She has the smarts to solve puzzle feeders and seems smitten with her beau-to-be, Ta Moon.
They have large paws for gripping branches, specialized anklebones for ease of climbing

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Gadwall | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/gadwall

Gadwalls may appear to be simple brown ducks from afar. But up close, their subtle beauty and intricately patterned plumage emerges. Gadwalls are dabbling ducks, meaning they feed by tipping their heads downwards to feed while floating—sticking their tails and feet in the air in the process. 
18-22 inches (46-57 centimeters) long, weigh 17-44 ounces (500-1,250 grams), and have

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New at the Zoo: Prehensile-Tailed Porcupine, Quillbur | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/new-zoo-prehensile-tailed-porcupine-quillbur

Don’t let his prickly appearance deter you – Quillbur is a very friendly porcupine! Get to know our new prehensile-tailed porcupine in this Q&A with Small Mammal House keepers.
Their quills have barbed ends that hook into a predator’s skin once pierced.

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Meet the Snakehead: A Fish That Can “Walk” On Land | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/meet-snakehead-fish-can-walk-land

With an aggressive attitude, an eager appetite for fish and the ability to “walk” on land, the northern snakehead fish is a powerful predator. Recently, Asia Trail keepers welcomed four snakeheads—one male and three females—into their care. 
Snakehead fish have evolved to “walk” on land!

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