
Secret to Ancient Sloths' Aquatic Lives? Dense Bones
Catch up with NBC News Clone on today's hot topic: Secret Ancient Sloths Aquatic Lives Dense Bones N50781 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
<p>Millions of years ago, aquatic sloths with extra-dense bones roamed shallow waters off the coast of modern-day Chile and Peru. </p>

