From hallucinogenic fish to nematodes oozing with lifespan-extending pheromones, many animals on Earth secrete chemicals with ...

Rinse the fish with the lime juice and water and pat dry. In a coffee or spice grinder, grind together the cumin, peppercorns and oregano. Crush 2 cloves of the garlic, add the ground spices and ...

Add the sweet potato, curry powder and cumin and continue to fry for further 5-10 minutes, until the sweet potato has softened, then add the fish and two tablespoons of the spice paste.

Cover with a lid and reduce the heat to a simmer. Steam for 6–8 minutes, or until the fish is cooked through and starting to flake. Remove the fish and set aside. Drain the potatoes and transfer ...