The divers could hardly believe what they were seeing. In front of them, stretched across the seabed were acres and acres of pristine rose corals. For photographer Alexis Rosenfeld, it was "like a work of art".

Last November, a group of marine explorers set off to map the seafloor near Tahiti, French Polynesia.

But 70 metres below the surface, they discovered something they thought impossible: corals. 

They were well into the twilight zone - the part of the ocean where light from the surface begins to dim. But despite the poor light, corals were growing. And they were thriving. Unlike corals in shallower water, they were unharmed by climate change. 

French diver Dr Laetitia Hedouin thinks the discovery could help with future conservation. For her and other experts, the new reef is a rare piece of good news. Coral reefs are hugely threatened. They are affected by pollution, rising sea temperatures and acidity in the water. 

The numbers are shocking. Within 20 years, as much as 90% of all living coral could have disappeared. 

But some corals seem to be fighting back. At the northern end of the Red Sea in the Gulf of Aqaba, something extraordinary is happening. The temperature of the water is rising faster than average. Despite this, the corals are thriving. 

Experts think the key to survival is in the past. Red Sea corals migrated from the south. There, sea temperatures were always warmer. As one expert summarises: "They still remember in their biology how to live at 33C." 

For ecologists, it is a moment of hope. It shows some species can adapt to survive the climate crisis. 

But the climate crisis is moving too fast for other species. In 2019, the Australian government declared the Bramble Cay melomys extinct. Many think they could be the first mammals to fall victim to climate change. 

According to a UN report, one million species are at risk of extinction due to human activities. Many believe we are already witnessing the Earth's sixth mass extinction event. 

From coral to lizards to rodents, species across the planet are facing pressures from climate change. How well they can adapt - if at all - will determine the future of the diversity of the world we live in.

Yes: These corals are proof of nature's adaptability. The planet has changed hugely throughout its history. Nature will survive whatever changes are still to come.

No: Climate change is unlike anything the Earth has been through before. Animals cannot adapt quickly enough to survive climate change. This is a crisis point. 

Or... We should not use this as an excuse to stop fighting climate change. Some species may adapt to survive. But a future with only the most resilient creatures is a bleak one.