Dogs' sleep habits offer insights into human-canine relationships, reflecting how domestication has influenced their behavior ...

Elon Musk Steps Up Efforts to Cull Federal Work Force Mr. Musk said federal workers must summarize their accomplishments for the week or be forced to leave, borrowing a tactic he used at his ...

They include invertebrates which have soft bodies such as jellyfish, worms and molluscs (like slugs and squids). There are also groups of invertebrates with hard bodies, such as insects ...