![This hat is from a company that produces bull semen. The 'I' in 'Profit' is shaped like a sperm cell. : r/mildlyinteresting This hat is from a company that produces bull semen. The 'I' in 'Profit' is shaped like a sperm cell. : r/mildlyinteresting](https://external-preview.redd.it/tVSHThv4-yUhhCxHAupVGX-GZrPmwGhdChk4OlWs7SA.jpg?auto=webp&s=e1440c7c84ce62a460bb6807d6fdc4190885144c)
This hat is from a company that produces bull semen. The 'I' in 'Profit' is shaped like a sperm cell. : r/mildlyinteresting
![Adventures with animals and plants. Biology. Frog Fig. 370 (above) Sperm cells froi// five kinds of anmials. In ivhat respect do these five sperm cells reseinble each other? Fig. 371 (right) Adventures with animals and plants. Biology. Frog Fig. 370 (above) Sperm cells froi// five kinds of anmials. In ivhat respect do these five sperm cells reseinble each other? Fig. 371 (right)](https://c1.alamy.com/thumbs/rr23yh/adventures-with-animals-and-plants-biology-frog-fig-370-above-sperm-cells-froi-five-kinds-of-anmials-in-ivhat-respect-do-these-five-sperm-cells-reseinble-each-other-fig-371-right-these-egg-cells-are-not-drawn-to-scale-in-what-ways-other-than-in-size-are-they-alike-and-different-the-male-gamete-or-sperm-cell-is-al-ways-very-much-smaller-than-the-egg-cell-it-is-always-microscopic-the-cell-consists-of-little-more-than-nucleus-and-membrane-a-tiny-bit-of-cytoplasm-is-around-the-nucleus-and-is-drawn-out-into-a-long-thin-tail-normally-this-tail-lashes-back-and-forth-and-s-rr23yh.jpg)
Adventures with animals and plants. Biology. Frog Fig. 370 (above) Sperm cells froi// five kinds of anmials. In ivhat respect do these five sperm cells reseinble each other? Fig. 371 (right)
![The first principles of heredity; with 75 illustrations and diagrms . hat the sperm-nucleuscan be dispensed with appears from some experiments ofProfessor Loeb. He induced ova of the sea-urchin Arhaciato develop parthenogenetically—i.e., The first principles of heredity; with 75 illustrations and diagrms . hat the sperm-nucleuscan be dispensed with appears from some experiments ofProfessor Loeb. He induced ova of the sea-urchin Arhaciato develop parthenogenetically—i.e.,](https://c8.alamy.com/comp/2AM3DD3/the-first-principles-of-heredity-with-75-illustrations-and-diagrms-hat-the-sperm-nucleuscan-be-dispensed-with-appears-from-some-experiments-ofprofessor-loeb-he-induced-ova-of-the-sea-urchin-arhaciato-develop-parthenogeneticallyie-without-the-intro-duction-of-a-spermatozoon-by-bringing-them-for-ashort-time-into-a-mixture-of-50-per-cent-sea-water-and50-per-cent-magnesium-chloride-the-cases-of-partial-and-total-parthenogenesis-alreadymentioned-also-point-to-the-same-conclusionthat-the-egg-cell-alone-is-capable-of-starting-its-own-embryogenesis-we-have-thus-in-fertilization-a-twofol-2AM3DD3.jpg)