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.
Puffins have two specializations that allow it to hold onto so many fish: the upper palate of their beaks, and the tip of their tongues. Their upper palates contain many small spines which hold onto the fish. The end of its tongue is rough and coarse, which it uses grab onto slippery fish, and once caught, to push its prey onto the spines above.