Wearing his new prosthetic legs Hero gets a taste of shrubbery Wednesday, May 21, 2014, in Houston. The abandoned calf rescued from a Virginia farm a year ago and brought to Texas after it nearly died is getting permanent prosthetics to replace back hooves that had to be amputated because of frostbite. (Photo by Pat Sullivan/AP Photo)

Jean Pierre Augustin falls out of the ring after being hit by Chris Arreola during a Premier Boxing Champions Heavyweight Bout at AT&T Stadium on March 16, 2019 in Arlington, Texas. (Photo by Tom Pennington/Getty Images)

Stranded cars remain in a flooded street during an intense rainstorm in Havana, on April 29, 2015. Two people were killed, three buildings collapsed and another 24 suffered some kind of damage due to the heavy rain that affected several sectors of Havana Wednesday. (Photo by Yamil Lage/AFP Photo)

Crowds watch surfers as the first big swell of the year arrives in Nazaré, Portugal on October 28, 2015. (Photo by Pedro Miranda/Demotix/Corbis)

Pakistani female police commandos attend a training session in Nowshera, near Peshawar Pakistan, Wednesday, February 11, 2015. Authorities formed a Special Combat Unit after Taliban militants stormed a Peshawar school on Dec. 16, 2014 and massacred 150 children and teachers. (Photo by Mohammad Sajjad/AP Photo)

A young Indian girl dressed as Hindu goddess Laxmi participates in a procession to mark “Gudi Padwa”, or Maharashtrian New Year, in Mumbai, in the Indian state of Maharashtra, Friday, April 8, 2016. (Photo by Rajanish Kakade/AP Photo)

Two 70 thousand RMB (about 11,310 USD) robots carry dishes and offer service for customers at a robot themed restaurant at Chunxi Road in Chengdu, China, December 11, 2014. The restaurant has 10 robots to serve as waiters. Each robot can carry simple dishes and offer simple greetings. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

Caroline Wozniacki of Denmark serves to Alisa Kleybanova of Russia during the BNP Paribas Open at the Indian Wells Tennis Garden on March 15, 2011 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)