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The tentacles have rows of stinging cells called nematocysts, and generally produce a sticky sensation when touched. An individual polyp resembles a miniature sea anemone although the diameter of each polyp can only reach a diameter of 2–3 centimetres (0.79–1.18 in). [ 4 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. Large baleen whale species Humpback whale Temporal range: 7.2–0 Ma Pre๊ ๊ O S D C P T J K Pg N Late Miocene – Recent Size compared to an average human Conservation status Least Concern (IUCN 3.1) CITES Appendix I (CITES) Scientific classification Domain: Eukaryota Kingdom ...
When ready to emerge from the water, nymphs vary in length, depending on species, from 3 to 30 mm (0.12 to 1.18 in). [4] The head has a tough outer covering of sclerotin , often with various hard ridges and projections; it points either forwards or downwards, with the mouth at the front.
4.5 cm (1.8 in) Also just called the X-ray fish. Yellow phantom tetra: Hyphessobrycon roseus: 2 cm (0.79 in) African moon tetra: Bathyaethiops caudomaculatus: 8 cm (3.1 in) Congo tetra: Phenacogrammus interruptus: 7.5 cm (3.0 in) Peaceful but may scare shy species with its active swimming and large adult size. Recommended for most community ...
Chasmanthium latifolium, known as fish-on-a-fishing-pole, northern wood-oats, inland sea oats, northern sea oats, and river oats is a species of grass native to the central and eastern United States, Manitoba, and northeastern Mexico; it grows as far north as Pennsylvania and Michigan, [2] where it is a threatened species. [3]
Some species, such as the gregarious German cockroach, have an elaborate social structure involving common shelter, social dependence, information transfer and kin recognition. Cockroaches have appeared in human culture since classical antiquity. They are popularly depicted as large, dirty pests, although the majority of species are small and ...