Which is the longest earthworm species on our earth? Do you know which are the top longest highways of India? What is a digital board eraser and how it works? Have you ever seen a blackboard eraser that saves the text while erasing the blackboard?

We also play an interesting spot the image in at the end of the video, along with some random facts.

Let us explore some about this earthworm & various interesting random facts in this episode 187 of TEF (Top Enigmatic Facts).

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