Some elephant bird species grew to heights of around 10 feet tall and could weigh up to 1,800 pounds.
Researchers have been unable to agree when human settlement on the island began.
Aye-aye lemurs are killed in the wild because they are regarded as a harbinger of evil.
The radiated tortoise is a popular pet in Asia, and some smuggle them out of Madagascar to meet demand.
They keep their prey at arm's length.
"Each year, the dry season gets longer by, I think, about a day.... That's definitely relevant to humans."
A sacred ritual that involves exhuming and rewrapping the remains of relatives could be aiding the spread of the disease.
The plague outbreak is a powerful enemy that cannot be stopped easily.
Razanandrongobe sakalavae is the oldest and largest representative of Notosuchia—a type of crocodilian that lived millions of years ago.
If his theory is correct, investigators may be looking in the wrong search area.
A British-American team unearthed a chunk of silver off Madagascar believed to be part of lost pirate's booty.