Amazing Discovery in Brazil
Scientists uncovered clear evidence of red blood cells inside a dinosaur fossil from Brazil. The bone comes from the right leg of a medium sized meat eater that lived about 115 million years ago. Researchers found well preserved cell structures still sitting inside the old blood vessel channels along with chemical signs of the molecule that carries oxygen in blood.
This Aratasaurus find ranks as one of the oldest and strongest examples ever reported. The level of detail has experts calling it a landmark moment for understanding how soft tissues can last across deep time. Nature keeps surprising us with these incredible windows into the past.
