Vostok programme it into an even higher orbit. The orbit eventually decayed, and it re-entered the atmosphere several years later. The next six launches were all of the "Vostok 1K" design, equipped with life-support facilities, and planned to be recovered after orbit. The first spacecraft launched on July 28, 1960 carried two space dogs named Chayka and Lisichka. An explosion destroyed the spacecraft shortly after launch, killing both dogs, and the mission was not given a name. The next mission, designated Korabl-Sputnik 2, was launched on August 19, 1960, carrying two more dogs, Belka and Strelka, as well as a variety of
Dogs in Mesoamerica deposits differs among sites from various periods. Because of this variation, it is not certain if the function of dogs altered from a food source to that of a religious symbol over time. Besides becoming a meal, dogs were also used as hunting and traveling companions and were scavengers in the home. During a portion of the Preclassic and Early Classic period (1200 BCE through 250 CE), dogs in Cuello, Belize were bred and killed once they reached one year of age. Dog bones had completed epiphyseal fusion and did not indicate the normal pattern of wear like adult dogs