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Ice Age Bear – level 1

23-09-2020 07:00

Permafrost is hard and frozen soil. It is in...

Robot Dogs Help US Soldiers – level 1

17-09-2020 07:00

The US company Ghost Robotics makes special robot dogs....

Robot Dogs Help US Soldiers – level 2

17-09-2020 07:00

The company Ghost Robotics makes robot dogs that have...

Robot Dogs Help US Soldiers – level 3

17-09-2020 07:00

Futuristic robot dogs manufactured by Ghost Robotics have joined...

9/11 Trail – level 2

15-09-2020 07:00

On September 11, 2001, the biggest terrorist attack in...

9/11 Trail – level 3

15-09-2020 07:00

Roughly 1,300 miles in length, the 9/11 trail system...

Obesity and Coronavirus – level 1

14-09-2020 07:00

Doctors say that the coronavirus is more serious for...

Women Can Vote – level 2

02-09-2020 15:00

In the past, women around the world could not...

Dirty Lagoon – level 3

31-08-2020 07:00

Half of a lagoon in Limpio, Paraguay, has turned...

Special Video of a Snow Leopard – level 1

25-08-2020 15:00

In nature, it is very difficult to see a...