Misc: What was first worn on the 10th October 1886?

Questions

Just like people, mother ---------- often develop lifelong relationships with their offspring.?

Kangaroo rats never drink ----------. Like their relatives the pocket mice, they carry their own water source within them, producing fluids from the food they eat and the air they breathe.?

Each day, 100 or more whales are killed by ----------?

Kangaroos usually give birth to one young annually. The young kangaroo, or joey, is born alive at a very immature stage, when it is only about 2 cm long and weighs less than a ----------?

---------- eels are not really eels but a kind of fish. Although they look like eels, their internal organs are arranged differently.?