that bracken cave outside san antonio is believed to be home to the single largest colony of bats in world. >> every year during the spring and summer, i think there are something like 30 million bats in the cave. >> in the cave? >> in the cave. in the summer. there are so many bats that the local weather stations use their doppler radar. they can see the cloud of bats coming out and spreading over the landscape to catch insects. >> really? >> it takes hours for them, there are so many commuting basically from wherever they're sleeping during the day to where their food is. >> they go the same way each time? >> yes. >> in an ecosystem, what role do bats have? >> yes. they're a really critical, key component. for instance, insect eating bats, because they consume so many insects, they play a large role in controlling insect populations. >> a normal size bat can eat up to 500 to 1,000 mosquitos in an hour that might be carrying diseases like zika or malaria. if you're in an area where there are a lot of mosquitoes and you see bats at night, you should be thankful for those bats. >> exa

. -- likelling bracken and brown bodies disproportionately. elite eagle, and i'll say stan wants, is to say he was the thorn in the side of donald trump. you know what donald trump is more afraid of than anyone -- anything else? a black man with power. trump ishat donald afraid of. so if the results continue to bear out as they are bearing out this evening and we get to congress, it will be our jobob o hold donald trump accountable and to hold every elected official accountable that continues to be beholden to corporate interestss, that continues to be beholden to the wealthy, and is now fighting for the poor and is now fighting for the working class in our country. america, if we are truly powerful, we should use that power to create peace all over the world. to become a humanitarian leader on this planet, and to make sure we have housing and jobs and fully funded schools and infrastructure and health care that is exemplary and humane immigration reform and a humane restorative justice system that reinvests in communinities that have been his