New details have emerged about how four Colombian children survived in the Amazon jungle for 40 days after a deadly plane crash.

The siblings, aged 13, 9, 4 and 1, are part of the Huitoto Indigenous group and the eldest possessed some skills needed to survive and care for the younger siblings alone in the jungle, family have said. 

Fidencio Valencia, an uncle, told the media outlet Noticias Caracol that the children were starting to talk after Friday’s rescue and one of them said they hid in tree trunks to protect themselves from snakes, animals, and mosquitoes creeping in the jungle.

Some familiarity with the rainforest’s fruits were also key to their survival, as the children also munched on seeds found in the jungle along with cassava flour that they took from the plane.

COLOMBIAN CHILDREN RESCUED FROM PLANE CRASH SURVIVED 40-DAY JUNGLE ORDEAL BY EATING CASSAVA FLOUR, FRUIT

Colombian soldiers and indigenous men help four lost children in jungle

In this photo released by Colombia's Armed Forces Press Office, soldiers and indigenous men pose for a photo with the four indigenous siblings who were missing after a deadly plane crash, in the Solano jungle, Caqueta state, Colombia, Friday, June 9, 2023. (Colombias Armed Force Press Office via AP)

The children foraged and navigated the jungle with limited supplies. 

Soldier stands in front of crashed plane in jungle

In this photo released by Colombia's Armed Forces Press Office, a soldier stands in front of the wreckage of a Cessna C206, on May 18, that crashed in the jungle of Solano in the Caqueta state of Colombia. (Colombia's Armed Forces Press Office via AP, File)

The siblings were found with two small bags containing some clothes, a towel, a flashlight, two cellphones, a music box and a soda bottle, which they had used to collect water in the jungle, Henry Guerrero, an indigenous man who was part of the search and rescue group, told reporters.

Colombia children being rescued

Soldiers and indigenous men tend to the four Indigenous children who were missing after a deadly plane crash, in the Solano jungle, Caqueta state, Colombia, Friday. (Colombia's Armed Force Press Office via AP)

The oldest of the four siblings, 13-year-old Lesly Jacobombaire Mucutuy said their mother was alive for about four days after the plane crashed on May 1, the father of the two youngest children, Manuel Ranoque, said.

MISSING COLOMBIAN CHILDREN FROM DEADLY JUNGLE PLANE CRASH FOUND ALIVE AFTER 40-DAY SEARCH

The children were flying with their mother from the Amazonian village of Araracuara to the town of San Jose del Guaviare when the Cessna single-engine propeller plane went down carrying three adults and the four children. The pilot had declared an emergency due to engine failure.

The three adults were eventually found dead near the plane wreckage.

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The four children are receiving treatment at a hospital, where they are expected to remain for at least two weeks.

The Associated Press contributed to this report.