Temperatures have surpassed 45°C amid an extended drought.
The new leader is known as "la Doctora" for her glittering academic credentials.
"I'd give anything for one more koala hug."
The parents arrived in the country on Sunday.
The three men were on a surfing holiday in Ensenada, about 90 minutes south of the US-Mexico border.
One trafficker said lab raids were often "for show".
The hungry bear can be seen walking across the table and eating a variety of food.
The Mexican journalist who claims he found the mummies is being investigated.
The pregnant couple were celebrating with family and friends when disaster struck.