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Whales are a widely distributed and diverse group of fully aquatic placental marine mammals

They have streamlined bodies and two limbs that are modified into flippers

[1] Despite this setback

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Hungary 1964 Space Research Complete Set of 8 Stamps Mint NH Nobel Prizes Chad Colorful Famous Painter HenriHungary 1964 Space Research Complete Set of 8 Stamps Mint NH Space is the boundless three dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding