I stared down into a tiny pool of water and watched a small group of langurs drink. They were very nervous, hardly drinking and ever vigilant. They had every reason to be alert. I was waiting here since morning to film a tigress bringing her four little cubs to water. And this little pool of water was her favorite. A tigress with cubs is wary and suspicious, if she even sensed that there was a fidgety cameraman waiting on top of a tree for her, she might not even show up.