a standard established in the 1951 case Dennis v. U.S. whereby the government could suppress speech to avoid grave danger, even if the probability of the dangerous result was relatively remote; replaced by the imminent Lawless action (incitement) test in 1969.
Laika became the first living being to orbit the Earth on Sputnik 2, Nov. 3, 1957. She died several hours into the flight from stress and heat. On May 28, 1959, rhesus monkey Able and squirrel monkey Baker became the first to successfully return to Earth after space flight.
No one really knows for sure what the first mammal was, but there are two top contenders for the title: the Megazostrodon and the M â¦ organucodon. Both are believed to have lived around 200 million years ago and the species are closely related. 2 people found this useful.he first mammal to orbit the earth was the dog Laika on November 3 1957 in the Soviet satellite Sputnik 2. which was not designed for her retrieval. Unfortunately Laikia died about six hours after launch.