We’ve heard of mama bears being ferocious, but mama bisons aren’t far behind.
Yellowstone National Park Service tweeted out photos Tuesday of a bison fending off a wild coyote from her calf.
A spokesperson with the park couldn’t confirm how long ago the bison had given birth, but told HuffPost the calf was probably less than a month old.
Judging by the look in that mother’s eyes, she was ready to kill before anyone hurt her baby. The coyote wisely backed away.
(Photo: Yellowstone National Park) (Photo: Yellowstone National Park)
Yellowstone National Park told HuffPost that animals on the 2.2-million-acre reserve aren’t given official names, but visitors often pick out nicknames for their favorite animals.
We’re sure with that side-eye, the mama bison and her baby will have quite a few fans handing out suggestions.
(Photo: Yellowstone National Park) (Photo: Yellowstone National Park)
Nothing is more powerful than a mother’s love.
Love HuffPost? Become a founding member of HuffPost Plus today. Also on HuffPost Cheetah Godfrey Mutuku Jones, a caretaker at Kenya's Wildlife Service orphanage, holds two, 3-month old female Cheetah cubs at the Nairobi Orphanage in Nairobi, Kenya, Monday, June 6, 2011. The two Cheetah cubs were abandoned by their mother, in Tsavo East, South of Nairobi, and were brought to the orphanage to be cared for by the Kenya Wildlife Service in Nairobi National Park. Baby Elephant San Diego Zoo A newborn Africa elephant lifted his trunk in search of his mother at the San Diego Zoo Safari Park. The male calf was born at 5:45 a.m. on Monday to Umngani (oom-gah-nee). In this rare moment, the calf stood alone after he had wandered off a few steps, but shortly thereafter his mother, 5-year-old sister Khosi (koh-see), and 2-year-old brother Ingadze (in-Gahd-zee) rushed over to tend to the unnamed calf. Throughout the day the family watched over their newest member, letting him only stray a few feet. The Safari Park is now home to 18 elephants8 adults and 10 youngsters. The adults were rescued in 2003 from the Kingdom of Swaziland, where they faced being culled. The average gestation period for African elephants is 649 days or 22 months. A newborn calf averages 200 to 300 pounds. Calves can be weaned at 2 to 3 years old. Baby Red Pandas A zookeeper holds up Kit and Kitty, the twin red pandas born in June on the first day of their introduction into their new enclosure at Tierpark Zoo on September 13, 2011 in Berlin, Germany. The red panda (Ailerus fulgens) is a rare mammal native to the eastern Himalayas and southwestern China. Baby Flamingo A flamingo baby cleans itself in its enclosure at the zoo of Hanover, northern Germany, on September 1, 2011. In the past three weeks, five flamingo fledgling hatched out at the Hanover zoo. For the next two months the flamingo babies will be fed by their parents from the beak. 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Colobus monkey Melbourne Zoo's newest primate baby, a three week-old Colobus monkey, is held in the arms of her mother Clover, in Melbourne on June 29, 2011. Keepers have not been able to determine the sex of the newborn monkey which is pure white and won't display any black markings until it's several months old. Black and White Colobus Monkeys, native to Angola, Democratic Republic of Congo, Uganda, Rwanda, Burundi, Tanzania and Kenya, have seen their populations suffer from the fur trade during colonial times, but now the greatest threats to their survival are the loss of their habitat and the bushmeat trade, the large-scale hunting to supply meat to towns and cities. Mustang-Arabian colt A two-day old Mustang-Arabian colt rushes to keep up with his mom, Maggie, in a corral at Fred Muzi's Millstone Farm in Dover, Mass. Wednesday, June 22, 2011. 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The new infant giant anteater, born on December 22, 2010, made its first public appearance at the Zoo. Baby Giraffe Zuri, a one-month old giraffe, walks past her parents in their outdoor yard at the Cincinnati Zoo, Thursday, May 5, 2011 in Cincinnati. Zuri was making her first appearance outside at the zoo. Snow Leopard One of the three snow leopards triplets rests near its mother at Basel Zoo in northwestern Switzerland on June 15, 2011. The zoo showed off the eight-week-old cubs longside their mother, Mayhan and father, Pator. The pair were matched mid-January through a preservation program run by the European Association of Zoo and Aquaria. Baboon A baby baboon plays with an adult one at the Hellabrunn zoo in Munich, southern Germany on June 15, 2011. Baboons are native to Africa and and live in hierarchical groups. Lion A lion cub yawns at the Lion Park in Johannesburg, during a visit of the Slovenian national football team on June 14, 2010 during the 2010 World Cup in South Africa. Bear cub A three month old bear cub who was born at the zoo in Stavropol looks at ostriches on May 5, 2011. Asian Small-clawed Otters An adult Asian Small-clawed Otter, right, and two baby otters sit in their enclosure at the zoo in Heidelberg, southwestern Germany, on March 28, 2011. The animals, also known as Oriental Small-clawed Otter, are the smallest otter species in the World and are native to South-Eastern Asia. Red Panda In this handout image provided by Taronga Zoo, Seba, a baby Red Panda, explores his new home at Taronga Zoo on April 7, 2011 in Sydney, Australia. The Red Panda cub was born at Christmas and is the 45th to be born at the zoo since 1977 Polar Bear Two polar bear cubs Gregor and Aleut play at the Tiergarten zoo in Nuremberg, southern Germany, on March 24, 2011. Ring-tailed Coati Ring-tailed coati cubs play at the zoo in Duisburg, western Germany, Friday, May 6, 2011. Sumatran Tiger Two baby Sumatran tiger cubs doze in their enclosure at the zoo in the central German city of Frankfurt am Main on May 25, 2011. White Lion A three-day-old white lion cub sleeps in Belgrade Zoo, Serbia, Wednesday, April 20, 2011. The four white lions cubs, an extremely rare subspecies of the African lion were recently born in Belgrade Zoo. This article originally appeared on HuffPost.