Big Pacific

Every year tiger sharks gather in big numbers in Maui. What’s the cause? It’s a mystery that’s a decade in the making. Now, a team of fearless shark scientists gets hands-on with one of the ocean’s largest predators to find out. That means free diving, face-to-face and unprotected. But these young women will do whatever it takes to get the data they need to crack the case.

In the Nagarhole Tiger Reserve, there is a kingdom named Kabini, which is home to a rogue confederation of animal tribes vying for dominance. But, a lone black panther named Saya is challenging the status quo by staking his claim to the throne.

On a summer's night, there's nothing more magic than watching the soft glow of fireflies switching on and off. Few other life forms on land can light up the night, but in the dark depths of the oceans, it's a different story: nearly 90% of all species shine from within. Whether it's to scare off predators, fish for prey, or lure a mate, the language of light is everywhere in the ocean depths, and scientists are finally starting to decode it.