Following a wave of intense criticism on social media, Rider deleted a controversial video in which he allegedly entered an archaeological site in Huancavelica, Peru.
Adolescents were sacrificed to their close relatives during funerals of high-status individuals in the Mocha culture.
"Amphibious rodents are almost mythical to mammal experts," said Trond Larsen, Senior Director at Conservation International.
Scientists discovered over two dozen new species in Peru's Amazon rainforest, including a semi-aquatic mouse and three other previously unknown mammals, during a 2022 expedition.
Among the representations found is a 72-foot-long orca wielding a knife and cutting off a human head.
However, the authenticity of the so-called tridactyl mummies has been widely disputed by the scientific community.
The remains of eleven individuals, estimated to be around 800 years old, were found buried with necklaces, earrings and bracelets, according to lead archaeologist Sinthya Cueva.
The traditional vin d'honneur reception took place at Jerusalem's King David hotel, with new ambassadors meeting their colleagues from other countries.
The defects found on the bones of the two children highlight a devastating impact of European colonization.
Paleontologist Rodolfo Salas said the skull belonged to the largest dolphin known to have inhabited the waters of South America, measuring 3 to 3.5 meters long.