3 harsh and threatening in manner or appearance the fierce faces of the players on the opposing hockey team Synonyms austere, dour, grim, flinty, forbidding, gruff, intimidating, lowering (also louring), rough, rugged, severe, stark, steely, stern, ungentleRelated Words bleak, cold, hostile, inhospitable, inimical, unfriendly, unsympathetic; adamant ...
Puffer fish from all other sources potentially contain deadly toxins and therefore are not considered safe. The liver, gonads (ovaries and testes), intestines, and skin of some puffer fish contain the toxins tetrodotoxin and/or saxitoxin.
Fun Facts About Poisonous Fish for Kids. Puffer fish, or blowfish, are covered with spines. When they feel scared, they blow up to more than twice their size. The spines stick out, making the fish look like porcupines. The spines arenât the only part thatâs toxic. Some puffer fish release poisons into their bodies when they die.