2021 Aurifil Builders Club - Meet the Sumatran Tiger

Check Out This Amazing Paper-piecing Block and Sumatran Tiger Embroidery that is available to Aurifil Thread Club Members!

The 2021 Color Builder Subscription is a capsule of 12 mini-collections, each containing three large spools of 40wt thread - a warm, a medium, and a dark. Each mini-collection is inspired by one of the world's most endangered species.

Meet The Sumatran Tiger

Wild Sumatran tigers are native to one place and one place only: Sumatra, one of the Indonesian Sunda Islands. Due to their dwindling numbers, they live in fragmented subpopulations, in both coastal lowlands and uncultivated mountain forests. Since palm oil, acacia, and rubber plantations are encroaching on their natural habitats, the majority live in protected national parks. Sumatran tigers live between 18 and 25 years. The oldest tiger ever recorded lived to 26.

Sumatran tigers sport beautiful tawny-orange fur with bold black stripes. If you get close — which is by no means recommended — you’d notice their stripes taper into spots, and the hind legs also have tiny dotted lines between the solid ones. Just as every zebra’s stripe pattern is unique, so is every tiger’s. Moreover, their coat patterns are skin deep and visible when fully shaven. Compared to other species, Sumatran tigers have more stripes.

Sumatran tigers have mane-like hair growth around their necks, and the males’ ruffs are larger than other tiger species.



Their whiskers are long and strong, and their ears are small and round. Sumatran tigers have yellow irises, and their tails are about half the size of their bodies.

Sumatran tigers are obligate carnivores, meaning they’re biologically dependent on a meat diet. On Sumatra, their menu consists of monkeys, birds, tapir, boar, deer, porcupines, fish, and, much to the torment and chagrin of human residents, livestock.

Sumatran tigers sleep 18 to 20 hours a day! If they live in a place also occupied by people, they normally hunt at night. But hidden cameras reveal that when humans aren’t around, day hunts are the norm.



Because of their smaller statures, Sumatran tigers are more agile than other tiger species. In terms of speed, they can sprint up to 40 miles per hour in short bursts. That’s why they’re ambush predators, slowly and silently stalking their prey until they’re ready to pounce. Habitat loss means Sumatran tigers are having to walk farther and farther in search of a meal—sometimes up to 18 miles.

Roaring, chuffing, grunting, snarling, hissing, growling, and even meowing are all vocalizations used by Sumatran tigers to communicate. Their roars, which indicate aggressiveness, can be heard up to 1.9 miles away. Chuffing, a low-frequency snort, signals contentment and happiness.

Sumatran Tiger Facts

They’re powerful swimmers! They love the water and even have paw webbing to navigate the ponds, rivers, and lakes in which they spend a lot of time.


In times of famine, they will amicably share food, even with cats from different “families.”


Baby Sumatran tigers are born blind and weigh about 1 kilogram (2 pounds). A week or two after entering the world, they open their eyes for the first time.


Thursday, July 29th is International Tiger Day! Celebrate by completing your Aurifil Thread Club Tiger Paper Piecing and posting it to our Facebook Page.

Learn more About The Sumatran Tiger When You Sign Up For Aurifil Thread Builders Club

Check Out The Aurifil Thread Builders Club by Clicking Here

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