Ofeibea Quist-Arcton

President Robert Mugabe turns 93 on Tuesday, making him the oldest president in Africa — and the world. He's the only leader most Zimbabweans have ever known, spending nearly 37 years at the helm since independence from Britain and the end of white minority rule in Rhodesia in April 1980.

Southern Africa is facing an invasion by an army — but not the sort of force you can defeat with ammunition. This foreign invader is an agricultural pest that is threatening the breadbasket of the region.

Zambian farmer Daniel Banda noticed in late December that something was munching through his crop of corn, destroying the maize fields on his small farm just outside the capital, Lusaka. Voracious caterpillars, known as fall armyworms, had nestled in the cobs and chomped through the leaves.

Some are calling it Nigeria's new "boy band." An "old boy band" would be more like it.

A new singing group that burst onto the Nigerian musical scene over the new year consists of senior citizens — a chorus of prominent past political and military leaders from Africa's most populous nation. And they're singing about peace, unity and goodwill in 2017.

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