Around 10,000 penguin chicks died when the Antarctic ice they lived on melted — they were still too young to survive in the icy water

• Around 10,000 penguin chicks died after an ice bed they lived on broke apart, the BBC said.
• The emperor penguin chicks, who had not yet developed waterproof feathers, died last October. 
• More than 90% of emperor penguins will be extinct by the end of this century, research shows.

Around 10,000 penguin chicks who had not yet developed waterproof feathers died after an ice bed beneath them melted and broke apart, the BBC reported on Thursday.