Reg Edwards wrote:
There's a breed of Algerian goats with legs on one side longer than the
other.

...and to go back the way they came, they must walk backwards?

Cheers - LH

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No! They just keep walking in the same direction. They have inherited a
gene for sensing contour lines, never failing to get to where they want to
be.

Hannibal, around 219BC, being unaware of genes in those ancient days,
considered mountain goats could be useful on the famous crossing of the
Swiss Alps on his way to Rome. But on second thoughts he decided to use
elephants who, as you know, walk trunk-to-tail. Neither he nor the
elephants quite made it to Rome.
---
Reg