Dogs can learn over 1,000 words and gestures, similar to the vocabulary of a young child.

Ancient Egyptians distinguished between the spoken language and written hieroglyphics — they used a separate everyday script.

Sign language grammar differs from spoken language grammar — word order and facial expression serve different grammatical roles.

Languages with no future tense have speakers who statistically save more money.

English borrowed about 30% of its vocabulary from French, primarily after the Norman Conquest of 1066.

Social grooming in primates was replaced in humans by conversation — language evolved partly as a social bonding tool.

The word 'silly' once meant 'blessed' or 'happy' in Old English.

Children typically master the grammar of their native language by age 5 — without explicit instruction.

Children raised bilingually from birth process both languages in the same brain regions — unlike adults who learn a second language.