GENERAL KNOWLEDGE: The word taboo is derived from which language?

Questions

As a rule, many birds generally lay fewer eggs in a clutch in the ----------, where the amount of daylight is shorter than in northern latitudes. It is in the northern reaches of the world that more summer food for birds is available as a result of the longer days.?

Kittens are born both blind and deaf, but the vibration of their mother's purring is a physical signal that the kittens can feel - it acts like a ----------, signaling them to nurse.?

---------- herds post their own sentries. When danger threatens, the sentry raises its trunk and though it may be as far as a half-mile away, the rest of the herd is instantly alerted. how this communication takes place is not understood.?

At birth, a ---------- is smaller than a mouse and weighs about four ounces.?

---------- can clock an amazing 31 mph at full speed and cover about 3 times their body length per leap.?