They were trading around$ 35 at the beginning of the year. The gains may have been amplified due to some investors buying in order to cover bets that the shares would fall.... Elon Musk, Tesla’s CEO, later tweeted, however, that a contract had not been signed.... According to FactSet, about 20% of shares in Avis had been sold short by investors expecting to profit if the stock fell.As a result, Tuesday's huge surge was likely partly fueled by short sellers having to buy the stock in order to c

Pull back that fur and stick out that paw. The Maryland Zoo in Baltimore said Tuesday that it plans to vaccinate some of its animals this fall against the coronavirus.... Even the cheetahs, the leopard and bobcats are trained to put forward their shoulder or a hip to get a shot. The animals will need two coronavirus vaccine doses, several weeks apart, experts said.... Its vaccine can be used in roughly 100 mammal species, experts said....