The number of African rhinos poached in 2015 set a new record, according to the International Union for Conservation of Nature. Some 1,338 were killed, which is the highest level since the current poaching crisis began in 2008. Since that time, nearly 6,000 African rhinos have been killed.
The conventional wisdom is that invasive species are bad news and we constantly hear about the dangers of foreign plants and animals moving into new territories.
