Large ships that travel to the area sometimes have accidents resulting in leaks of gasoline or oil.

VOA: special.2009.06.03

And,diseases sometimes kill large numbers of lions.

VOA: special.2009.05.05

Sometimes, sciencecan seem overwhelming. There are complicated concepts, unimaginably large - or small - objects, and vast distances that most people have a hard time understanding.

VOA: standard.2010.05.04