North American Jaguar population threatened by Trump's wall June 2, 2017 Alasdair Baverstock Of the thousands of species that live along the US-Mexico border, the jaguar is one of the most endangered. But recent sightings of the wild cat are giving conservationists hope that its numbers could be going up. However, US President Donald Trump's border wall could change all that, as Alasdair Baverstock reports.