Possible Clues:

• Mongoose, to a snake ... or snake, to a mongoose
• Wildebeest, to lions
• When speaking, beg for quarry
• Sea lions, to sharks
• Hares, to a lynx
• Predator’s quarry
• Seals, to a 14-Across
• Insect, to a Venus flytrap
• "Birds of ___"
• Rabbits and chickens, for foxes