Hertfordshire Zoo has achieved a remarkable second consecutive breeding success with its rare black and rufous sengi, commonly known as elephant shrews. The twin pups arrived on April 22 to parents Nuru and Mala, just months after the pair produced the first-ever UK-born litter of this unusual African species in March. Weighing merely 30 grams at birth — equivalent to a standard first-class letter — the tiny newcomers remained hidden in their family nest box for several weeks before emerging thi