COLOMBO — Si Lanka’s main zoo is bracing for a food crunch for its 4,500 animals, amid runaway inflation that has pushed food prices up by nearly 60% and brought misery to Sri Lankans hit by the worst economic crisis in their country’s history. Images have circulated widely on social media showing severely emaciated lions in cages. But the Department of National Zoological Gardens, which manages Dehiwala Zoo in Colombo, has denied that the picture came from there. Department head Thilak Premakantha said that while the zoo does have enough food for the animals for now, it’s considering measures…